Are you a 5th grade math teacher trying to figure out more ways to help your students? Try using this engaging and no prep printable adding and subtracting decimals activities PDF for a lesson that’s full of both fun and learning at the same time.
Using fun activities makes your students master adding and subtracting decimals with ease. These engaging worksheets are designed to make decimal decimal operations fun and accessible.
In this blog, we are talking about helping you to build confidence and proficiency in your student’s abilities to add and subtract decimals using mystery puzzle activities.
Why should you teach decimal operations?
It’s a very important skill to teach your students how to add, subtract, multiply, and divide decimals.
The knowledge that your students gain by building this particular skill is very important in their daily lives while dealing with height, weight, money, etc.
But before this, they need to nail down their basic about decimal place values.
Having prior knowledge of decimal place values, your students will be better able to understand decimal operations like adding and subtracting decimals.
Here are a few resources you can try in your classroom for teaching decimal addition and subtraction:
Engaging Adding and Subtracting Decimals Activities PDF
Keep in mind you need to build up your student’s basic understanding of decimal numbers before your use this printable mystery puzzle activity for review work.
Adding and Subtracting Decimals Mystery Puzzle Activity
You want to review adding and subtracting decimals for your 5th grade math students, and your goal is to make them capable enough to be able to think independently of the math problems.
Why not try these no prep adding and subtracting decimals activities PDF with mystery puzzle worksheets? Here is an example of how it looks:
How does this activity work?
First, print the activity page and cut the puzzle pieces on the right side of the page. You can even tell your students to cut the pieces themselves.
Second, they solve the problem of adding and subtracting decimals on the left side of the page. They can use the block they are working on to show their work or even use the back side of the page to show.
Lastly, they find the puzzle picture with the answer they have found and paste it on that specific question. Encourage them to keep on working until they reveal the mystery picture.
Adding and subtracting decimals activities 5th grade mystery puzzle not only helps them with their decimal problem solving skills but also lets them wonder what mystery lies ahead of them.
If you are interested in the free printable adding and subtracting decimals activity, fill in the form below with your name and email address, and it will be delivered to your inbox.
Click here to download PDF. The activity has an answer key, just in case your kiddos get stuck while solving the puzzle. I hope you found this post helpful.
Kids in upper elementary classrooms are more inclined to learn math through games because math games provide the same environment as today’s gadgets and screens but with the goal of learning something new.
This is why, in today’s teaching, it is more important than ever to use game-based learning methods in our math classrooms.
In my 10+ years of teaching math to elementary students, I have never encountered a time in my classes when, whenever I pull up a game, my kids do not get excited.
It has always been the case for me, no matter what the type of game is! It can be digital as well as printable but what would never happen with board games or game shows is a dry class with no learning excitement for a hard subject like math.
Honestly, I feel that having printable games or digital game-based activities should be in every teacher’s toolkit. They are a compelling way for kids to connect and engage with your teaching content. Still not convinced?
Here’s a list of why math games are important and how to integrate them into your lesson planning.
1. Enhanced Engagement during Math Class
This is what we all want? I mean, I do! And the best way to increase your class engagement is by using math games to make learning more interactive and exciting.
Gamification helps develop critical thinking skills, which are essential for children’s future success. Students are more likely to participate and stay focused when they play a game in pairs, compared to just working through a set of problems on a worksheet.
So, make your kids work in pairs next time you want them to add some accountability to your math lessons. The added accountability helps them push each other and encourages a sense of responsibility.
Looking for some fun games? Melissa, a fellow teacher, coach, and TpT author, has a blog post that can give you a comprehensive idea of the benefits of using math board games in classrooms.
2. Improved Understanding with Math Games
Understanding is the most important part of the learning process. It is the integral part that should be focused on during lesson planning.
If your kids can understand the basics of any concept, like fraction operations or the order of operations, they will be able to think through them, understand them, and solve problems on their own, which should always be the goal.
This collaborative environment that is created as a result of their teamwork can help them feel more comfortable sharing their thought processes and strategies with their class fellows.
With games, we can present kids with the same math problems in various formats like multiple choice, true-false, or even open-ended, which then helps students to see concepts from different angles.
This is crucial as it deepens their understanding and helps them apply math skills in various real world situations.
During my lessons I try to give kids as many practice problems as possible, but after we have
ended a lesson I prefer other formats like multiple choice or true false using interactive activities or riddles to check their understanding and see where the gaps are!
3. Immediate Feedback
Of course, getting feedback is important! But what’s more important is making it fun not just for kids but for you too. I try to incorporate self checking games during lessons because of the immediate feedbackkk!
We all want our kids to rise and shine but none of us want to go through the painful time taking act of grading and checking the assessments and creating the report cards.
That’s why math games can actually be a handy tool. It provides us with a way to keep ourselves on top of all the stuff other than teaching by utilizing the power of active learning, allowing students to practice and reinforce their skills in an interactive way.
It allows students to quickly see the results of their actions and understand what they need to improve. This immediate reinforcement can increase their confidence and motivate them to learn more.
4. Fun and Motivation
Let’s be honest: It is a chore to make math enjoyable and personalize activities for every kid. However, I believe learning is not only enjoyable with games; students are more than ready to engage with the material. Math games can turn a challenging subject into a fun and rewarding experience, which enhances a positive attitude towards math.
Digital games can be easily integrated into your lesson plans and are great for individual or small group work. One way is to customize games for different skill levels, making sure that all students, regardless of their abilities, are challenged appropriately and can progress at their own pace.
You can create different stations with various math games, like “Digital Fraction and Decimals Pixel Art Bundle.” Just assign students one of the activities and keep them engaged by exposing them to different types of problems.
Another way is to organize math game tournaments or challenges inside the classroom to add an element of friendly competition. However, this can even create a challenge of managing competitiveness among students. For this, make sure to emphasize the importance of teamwork and collaboration more. This can motivate students to practice more and improve their math skills.
Lastly, have students discuss what they learned and reflect on their strategies after playing. This will help solidify their understanding and encourage them to think critically about problem-solving techniques.
Math games are a fun and effective way to review important math concepts like decimal operations inside classrooms. Incorporating math games into your classroom can transform the way your students learn and engage with math. Making lessons interactive, engaging, and fun will help your students develop a deeper understanding and a love for the subject.
Do you feel like the first few weeks of school are a wild ride, between building relationships, establishing routines, and trying to remember 35+ student names, it’s easy for math review to get thrown on the back burner.
But here’s the thing: if you don’t intentionally set the tone for math from day one, your students won’t either for the rest of the year.
And that’s NOT something I want happening in my classroom. Nope, neither should you.
📌 Save this post for later – Pin it to your favorite math board!
So instead of using boring math worksheets or overwhelming diagnostic tests, I use engaging skill based no prep math activities that help me review what they forgot over summer without making them cry.
Here are a few of my go to back to school math activities that review key skills AND get your students excited about learning again.
Activity #1: Color by Number for Math Facts Review
This one’s a classroom favorite — every time. I use them throughout the year in so many ways.
I start the year by reviewing basic math operations like addition subtraction multiplication and division of multi digit numbers. The best way to do this is using color by number math printables that review these core basics.
The coloring math pages aren’t just fun, but a low-pressure way that gives me an instant idea about where my students’s math skills are.
You might be thinking why would math coloring work?
Because it’s quiet, focused, and low-prep (aka teacher sanity saver).
Kids feel successful and relaxed, even if they’re rusty. Most of all, they work across all levels, not just adjust basic math skills!
Here is my go to back to school math activities that I use over and over again:
These let me see exactly who remembers their facts, and who’s gonna need support.
Activity #2: Math Riddles for Skill Review & Confidence Boost
Math + humor = WIN.
After summer brain drain, many kids feel nervous about math. That’s why I love using math riddles during the first few weeks of school.
They’re engaging, self-checking, and build serious confidence, especially for students who typically shut down during more traditional practice.
What matters most is that it keeps them engaged longer, not just because of the math itself, but because the suspense of solving the riddle holds their attention and keeps them going without frustration.
And guess what? There’s actual research to support this.
A study published in the Journal PRIMUSfound that using logic puzzles, riddles and brain teasers in math practice can significantly boost student motivation and learning outcomes.
Riddles work perfectly for partners or independent work and initiate discussions that kids might not otherwise have.
Want a ready-to-use set of math riddles to kick off the year?
Honestly, the first week of school is not the time to hit them with a textbook.
It’s time to build connections, make them curious, and ease them into structure without stress.
One of my favorite ways to do that is by using partner puzzle math activities to review the concepts.
For that, I pair students up to complete a math puzzle in collaboration with their partner. Why?
Because not only does it build classroom community, but it also gets them talking, collaborating, and thinking critically from day one, which is super important.
The key is using something that’s Skill-focused (so it’s not just fluff) and self-checking (because you’ve got 1,000 other things to manage).
You can use something like picture puzzles. Want to know how they work?
Students solve fraction operations problems (add, subtract, multiply, divide), then match their answers to reveal a hidden picture.
They work in pairs, double-check each other’s math, and get excited when the image starts to appear. It’s like math + art + problem-solving rolled into one, and YES, they’ll actually ask for more when they finish.
For middle school grades, I use this Fraction Operations Mystery Picture Puzzle during week one or two when we start reviewing fraction skills from 5th grade. It’s the perfect soft entry back into multi-step problems, especially for students who are a little rusty.
Activity #4: Fun Independent Review Packets
As we transition out of back-to-school dread and into “real curriculum,” I use independent review packets to bridge my kid’s concept gaps.
I choose 1-2 skills per day (ex: decimal addition, then subtraction the next day) and give them a page daily for 5–10 minutes to warm up their math brains.
You can even use independent packets to build your own year long review packets.
Activity #5: Digital Pixel Art Activities
By week two, most of us are already juggling tech rollouts, login issues, and trying to figure out how to squeeze actual math teaching into a packed schedule.
Digital pixel art activities are my go to when I want students using Chromebooks productively without me having to monitor them.
They’re self-checking, skill-based, and fun as hell.
Basically, students solve problems, and a hidden picture gradually appears based on their answers. It’s like gaming, but for math review.
Skill focus: Place value — perfect to revisit those rusty number sense skills from 4th grade When I use it: the first full week of school Why it works:
It’s digital, but doesn’t need fancy platforms
Instant feedback means students stay engaged
It’s great for centers, independent work, or as a tech-day activity
Back-to-school season doesn’t have to be chaos. With the right math activities, the ones that are fun, focused, and functional, you’ll start your year with students who are engaged, confident, and ready to learn.
Skip the overwhelm. Get these exciting activities, and go enjoy teaching your class.
During my elementary math classroom, I like having games and activities that are not prep.
Why? Well, because it is easier for teachers to set them up and grade, and on top of that, kids ALWAYS love it when I teach subtraction and addition using board game worksheets.
In this blog post, I’m going to share 3 of the best resources you can use in your classroom to teach 3 digit subtraction and addition using worksheets.
First of all, teaching 3 digit subtraction and addition with and without regrouping isn’t just necessary at the start of the year. In fact, it’s better to set up the material as a year-long series resource that you just pull up and instantly use to teach.
Honestly, it can be hard to make something that you can use all year long. At least, it was always hard for me to decide what to use for practicing this basic addition and subtraction skill.
To overcome this problem, I created several 3 digit subtraction and addition worksheets that I keep with me whenever I need them during class.
Here are a few of them that you can use to make your life easier.
1. 3 Digit Subtraction and Addition Worksheets
As the name suggests, addition and subtraction with regrouping worksheets are best used when we are introducing these concepts to kids.
What you want at this stage is to allow your students to practice the skills they have learned without any distractions.
Once they have practiced enough, you can then use advanced pedagogical activities to reinforce their practice, like printable math board games, digital activities, or even coloring math worksheets.
This excites the students to work on their basics and get their practice done correctly.
2. Addition and Subtraction Riddles Activity Worksheets
Honestly, who does not love to solve riddles? In my classroom, I always find my kids excited to practice math when done with riddles worksheets.
This activity is the single most used activity throughout my addition and subtraction practice class. Riddles not only keep them engaged in working on math but also keep them excited to know what the answer to the secret question is.
So if you want to make your kids practice 3 digit addition and subtraction, use riddle activities to keep them excited about working on their daily practice.
Another option would be to use it as a center activity or homework to reinforce what they have learned.
3. Solve The Room 3 Digit Addition and Subtraction Activity
Let’s face it math is a tough subject for some kids.
And whether you are new to teaching or you have been teaching for quite some time.
It can get frustrating to keep your kids engaged and excited to try new concepts. It can feel boring to go through the same activities day in and day out. But the good news is that it does not have to be!
If you want to make this tedious task more fun and engaging for your kids, WHY not incorporate the Solve the Room activity in your weekly math activities list?
It is not only fun and highly active, but can also be used to assess your student’s individual understanding of the concepts.
Here is how it works:
You place the question task cards at different stations inside your classroom. Give each of your students a recording sheet that they can use to solve and write their answers.
Students hop from one station to the other, solving the problems. If they get stuck, they can come to me for some help.
You can use Solve the Room activities for every 5th grade math topic. I use it for almost every 5th grade math topic, like Addition and Subtraction of Whole numbers, Fractions, and Decimals.
But just in case you do not want to make these activities yourself and want to save your valuable time, then I have one inside my TPT store for you to check out. Click here to check!
All right, so we’re diving into the exciting and full of fun world of… 3 digit addition. As a math teacher myself, I know what you might be thinking! I know, I know. ‘three digit addition’ and ‘exciting’ are two phrases that you probably never expected to see in the same sentence. Yet, here we are!
But for a moment, I want you to picture this: your kids, completely absorbed, their minds buzzing away as they add numbers. No more expressionless eyes, no more “Do I have to?” Instead, they’re eager. They’re engaged. They’re learning. Sounds like a far-off dream? Well, it isn’t, and thanks to the gamified math lessons, this could be the reality of your classroom.
I remember when I was a kid, and math felt like a tedious chore. But honestly, I do not want that for my kids in the classroom, so it’s time that we as math teachers, put those days behind us.
Let’s make learning two and three digit addition and subtraction worksheets a game — literally. How? Here is a step by step month-long journey to transform 3 digit addition from ‘Ugh, not again!’ to ‘Can we do more?’ in your classroom.
Week 1: Nailing the basics of the concept of 3 digit addition
Ever tried to build a castle on sand? It’s a shaky business, right? The same goes for 3 digit addition with elementary students. If you’re shaky on the basics, teachers! Well, you’re setting your class up for a castle full of confusion. Let’s clear the air on this. Shall we?
Now, for your kids to understand 3 digit addition with and without regrouping, you first need to make them recognize the importance of place values. They should’ve got hundreds, tens, and ones down. To clarify this concept to your kiddos, you can tell them to picture hundreds, tens, and ones as three shelves in a bookcase, each with a specific spot for its ‘book’.
But the thing to remember here is that it’s essential for the numbers to go in their right place. Misplace the numbers, and you’ve got chaos!
Then comes the tricky bit: carrying over. A common hiccup, often as mystifying as a magician’s trick. But it does not have to be that. You can simplify it further for them. So, if your ‘ones’ total more than 9, you ‘carry over’ the extra to the ‘tens’ shelf. Same rule for the ‘tens’ to the ‘hundreds’. It’s like when you’re packing a suitcase, and it overflows – you need another bag!
Now, what about gamification in math? Think of it like turning broccoli into a superhero. Kids love games, right? So why not use that love to turn learning 3 digit addition and subtraction with and without regrouping into a thrilling adventure?
Gamification takes the chore out of learning, and makes it interactive, and here’s the important part: it leverages our innate love for rewards. There are several platforms and tools for gamification, with different colors suited to different needs.
Week 2: Preparing the Gamified 3 Digit Addition with and without regrouping Lessons
So you’re ready to transform your class into a gaming field. But which platform to choose? It can get overwhelming pretty quickly if you do not know exactly what you are looking for. More like being in a candy shop with infinite choices.
But what I can tell you from personal experience is that features, user feedback, and, most importantly, compatibility with your class size, age group, and tech comfort is all that matter.
Selecting a platform is just the beginning. Next, you’ve got to figure out a way to add your triple digit addition and subtraction curriculum to this platform. Initially, it might feel like you are doing a puzzle. You need to break down the curriculum into daily and weekly objectives, making sure each game fits seamlessly into the learning process.
Now the most important part here is to remember, that variety is the spice of your classroom! Mixing up games and keeping the interest alive is what you should aim for. Imagine being served the same dish every day. Boring, right? The same goes for your class. So spice it up with a variety of games.
Week 3: Rolling Out the Gamified Lessons
Now comes the big reveal. Introducing the new approach to students can be a dance as delicate as a ballet. The aim? To make sure they understand how the platform works, how it’ll be integrated into their learning, and – this is key – why it’s gonna be super fun.
As the lessons roll out, be ready to wear the hat of an eagle-eyed observer. Tracking progress, and providing feedback, it’s all part of the game. It’s like being a coach on the sidelines, guiding and cheering on the players.
Wanna know what I use to add a gamification touch to my 3 single digit addition worksheets in class,check this out on TPT!
Week 4: Evaluating Progress and Getting Ready for the Quiz
After the lesson is been done and you feel like your students get the concept it’s time for the big day! I mean Quiz day! Although students dread to go through a quiz, not in our gamified class! Here, quizzes are designed to mimic the game-based problems, making them less of a scary monster and more of a friendly challenge.
You can offer your students study aids and revision sessions to help them clarify any gaps in their learning. A little extra help won’t hurt anyone. Alongside this, you can gather progress reports for each student. Here you’re not just looking at who’s soaring and who’s stumbling but also pinpointing the areas where students commonly trip up.
And now, the finale of week four: prepping for the quiz. Make sure to review the main concepts, but more than that, ensure the students have a clear concept of the topic and what lies ahead.
You can even use these riddle Worksheets to evaluate your student’s early progress.
Quiz Day: The Ticket to 3 digit addition with ans without regrouping worksheets Stardom
Now comes the day the students have been working towards. The quiz. It’s the chance to put all that they’ve learned to the test.
The quiz results aren’t just numbers but celebrations of success and stepping stones for further learning. Each correct answer calls for a small classroom celebration, and each misstep is an opportunity to learn and improve. Remember, every cloud has a silver lining.
So there you have it. But remember it’s not just about the numbers, but about making learning an experience. It’s about taking those dread-filled, yawn-inducing lessons and turning them into a journey of exploration, excitement, and fun.
So, if you want to break the chains of traditional teaching and think outside the box, it’s time that you implement these strategies into your classroom and play. Gamified lessons aren’t just an educational trend. They’re the key to exposing engagement, sparking curiosity, and making your students not just learn but love the process.
Especially in a world where children are often glued to screens and gadgets, gamifying math lessons can serve as a link in our classrooms that merges education with entertainment in the most effective manner. So in order to take the ‘boredom” out of traditional math lessons and transform it into an exciting experience that students can enjoy while learning new math skills at the same time it’s more like a necessity now.
As teachers, it’s our duty to make sure that every child in our class experiences the thrill of learning. With the right tools and approach, even the most seemingly mundane topics like 3 digit addition can become adventure journeys for exploration. By continuously experimenting with new techniques and, most importantly, making math fun we can make math exciting for our young generation. After all, isn’t that what education should be – an exciting journey of discovery for our students?
Remember, the journey of a thousand miles begins with a single step. You’ve got this. Just imagine, a classroom humming with excitement, picture the pride on your students’ faces when they nail a complex 3-digit addition problem, not because they had to, but because they wanted to.
Conclusion:
You have the power to turn ‘boring math Class‘ into ‘bring it on!. To replace sighs of boredom with cheers of excitement. To transform ‘I don’t get it’ into ‘I did it!’.
Since the methods of teaching in education are always evolving, it’s crucial that we continually seek methods that not only enhance the learning experience but also ignite a passion within our students.
Gamified math 3 digit addition lessons can bridge the gap between conventional teaching and the digital age. By transforming the seemingly mundane task of 3-digit addition practice into an engaging journey, we aren’t just teaching numbers – we’re nurturing a love for learning.
The unexpected joy and enthusiasm that arise from such methods prove that with the right tools and mindset, even the most traditional subjects can be refreshed and revitalized. Let’s continue to innovate and inspire, turning challenges into opportunities and learners into lifelong enthusiasts. After all, when education is fun, the sky’s the limit.
Are you ready to learn how to make Boring Worksheets Fun in your next math class and make math the coolest part of your kids day . Try out these fun ideas and say goodbye to boring old traditional worksheets.
In this post I’ve got 11 super fun ideas to make math feel like a game. Imagine your students racing to finish math problems, playing bingo with math questions, or even turning your classroom into a mini escape room.
Let’s make sure learning math is not just about numbers but also about having a great time. And yes you can have fun in you math class even using your old math worksheets that maybe your district in mandating you to use.
1. Math Races:
I am all about healthy competition and honestly my kids even love it. All you have to do is give your students a competitive atmosphere by timing them as they complete their assigned math activities or worksheets. This will motivate them to finish quickly and accurately and turn the routine task into an exciting race against the clock.
2. Worksheet Bingo:
Another idea that you can implement is turn your normal daily worksheet problems into a bingo game. Which basically means with each correct answer you made your students to mark off a task or problem completed and check off a square. What can even motivate them more is to give them a small prize or award recognition for their effort or to the one that get a line first.
3. Math Puzzles:
Using puzzles as worksheets where with every problem that they solve gives them some clue for the next problem they need to solve. It can be a riddle, a hidden message, or a mystery that gets solved with each correct answer. I used on of these mystery puzzles worksheets for reviewing addition and subtraction inside my classroom and my kids just loved it.
4. Interactive Worksheets:
Using technology to turn your already made worksheets into interactive digital activities. This way you do not have o do the work again and still keep your kids engaged in fun way. Best way I do it is by turning the task cards in to images and then adding those task cards as background images inside Google Slides(TM) and add a text box on top of it for my kids to put their answers.
Second thing that you can do is insert the same task cards as images in Google forms(TM) and use the multiple choice option to create a multiple choice self Checking activity like this for your class, either way your kids are gonna love the special twist of learning experience you put on turning boring worksheet fun.
5. Group Challenges:
Team work in important for every classroom whether its ELA, math, arts or even music. No matter what you are teaching encouraging teamwork by having students work in small groups to complete the the assigned math task. This way they can develop their social and leadership skill along side learning which is a win win. Students can discuss strategies and help each other out which fosters a collaborative learning necessary for their future growth.
Creating activities like math mazes, puzzles or mystery activities gives them the opportunity they need to develop their collaborative skills and turn boring worksheets into fun learning experiences.
6. Real-World Application:
Connect math problems to real-life scenarios. This not only makes the worksheet more interesting but also helps students understand the practical application of what they’re learning.
7. Math Stations:
Set up different stations around the room, each with a math task or worksheet to complete. Students rotate through the stations that breaks the monotony of boring routine and adds movement and excitement to the class.
8. Creative Rewards:
Positive reinforcement is essential for kids to learn and get motivated to do better next time. You can give them their favorite snack as an award, a Home work pass or a chance to play their favorite game.
9. Incorporate Art:
Have them illustrate their mathematical thinking into art. This gives them the ability to develop further their problem solving skills and critical thinking skills.
10. Math Journals:
Math journals like goal journals and others can be useful. Instead of boring worksheets, have students keep math journals where they not only solve math problems but also write about their thought process, making the activity more reflective and personalized. This helps students organize their thought and develop creative thinking.
11. Escape Rooms:
Design worksheets that mimic an escape room challenge. Each correct answer helps “unlock” the next section until they “escape” by completing the entire sheet. This adds an element of adventure to the task.
Remember, the goal is to make learning math not just educational but incredibly fun too. So, try to use these strategies and ideas to your advantage, and turn boring worksheets fun and use them to your advantage. Here is one such example of an multi digit addition and subtraction escape roomI did in my that my kids totally loved.
Use this and see your students discover the joy in numbers, and most importantly, develop a lasting love for learning. Implementing all these ideas might require a bit more effort on your part but I assure you it will be 100% worth it.
Find the tips useful, share with other teacher friends!
The week before Thanksgiving is pure chaos in most middle school classrooms.
Students are hyped about the holidays, focus levels drop, and teachers (yes, you!) are juggling lesson plans, grading, and trying to keep the class calm.
That’s where seasonal resources come in.
Thanksgiving GCF and LCM worksheets with answers aren’t just a cute idea they’re a strategic teaching tool.
They combine review and engagement so your students practice key math concepts without tuning out.
In this post, we’ll walk through what GCF and LCM are (with examples), why themed math activities work so well, and where you can grab high-quality Thanksgiving worksheets that save you time. But before that let’s first try to answer:
What Is GCF and LCM (with Example)?
Before diving into Thanksgiving math fun for 6th grade math, let’s make sure we’re all on the same page, especially if you’re prepping sub plans or review material for your students.
Thanksgiving GCF and LCM Worksheets and Activities Grade 6 PDF 1
Thanksgiving GCF and LCM Worksheets and Activities Grade 6 PDF 1
GCF stands for Greatest Common Factor. It’s the largest number that divides evenly into two or more numbers.
LCM stands for Least Common Multiple. It’s the smallest multiple that two or more numbers share.
For example:
Let’s find the GCF and LCM of 27 and 45.
Step 1: List the factors.
Factors of 27 → 1, 3, 9, 27
Factors of 45 → 1, 3, 5, 9, 15, 45
and here GCF = 9, because it’s the largest number both have in common.
Step 2: List the multiples.
Multiples of 27 → 27, 54, 81, 108, 135, …
Multiples of 45 → 45, 90, 135, …
Therefore, LCM = 135, because it’s the smallest number both share.
