Free Adding and Subtracting Decimals Activities PDF for 5th Grade
Looking for an easy way to help your students review adding and subtracting decimals without another boring worksheet?
This free adding and subtracting decimals activity turns practice into a secret mystery picture puzzle your students actually enjoy solving.
Using hands-on activities like these helps students practice more and get clarity on skills they are working on, like adding and subtracting decimals or fractions, with confidence.
This is the reason why I have created these engaging activities to make decimal operations fun and accessible.
In this blog, I want to help you build confidence and proficiency in your students’ abilities to add and subtract decimals using mystery puzzle activities.
Why Teaching Decimal Operations Matters in 5th Grade?
Let’s be real, dealing with decimal operations is something your students will deal with in their everyday lives.
From measuring ingredients in science experiments to calculating totals with money, the skill is crucial to understand.
So, it’s very important to teach them the concept of how to add, subtract, multiply, and divide decimals.
But before starting addition and subtraction, they need to nail down their basics about decimal place values.
When students already understand whole-number place value, know their math facts, and can read, write, and compare decimals, learning how to add and subtract decimals feels much more easy.
A basic understanding of fractions, especially tenths and hundredths, also helps students see how decimals represent parts of a whole.
Having prior knowledge of decimal place values and what it represents, your students will be better able to understand decimal operations like adding and subtracting decimals.
By the way, if you need help with resources, you can try in your classroom for teaching decimal addition and subtraction. Here are my favorite ones:
Engaging Adding and Subtracting Decimals Activities PDF
Let me say this again: you need to build up your students’ basic understanding of decimal numbers and their place value understanding before using this printable mystery puzzle activity for review.

Adding and Subtracting Decimals Mystery Puzzle Activity
If 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 mystery puzzle? Here is an example of how it works:
How does this activity work?
Step 1: Download, print and cut the puzzle pieces (students can cut them themselves).
Step 2: Solve each decimal problem on the worksheet.
Step 3: Match answers to puzzle pieces.
Step 4: Reveal the mystery picture!
First, download and 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 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 correct answer they have found and paste it on that specific question.
Encourage them to keep on working until they reveal the mystery picture.
This hands-on mystery puzzle activity on adding and subtracting decimals for 5th grade not only helps them with their decimal problem-solving skills but also makes them curious what mystery lies ahead of them.
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Click here to download the decimal activity PDF. The activity also includes an answer key, just in case your kiddos get stuck while solving the puzzle. I hope you found this post helpful.
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