4th Grade Mental Math Strategies for Addition and Subtraction QR Code Task Cards
This activity is designed to reinforce the mental math strategies breaking apart, compensation, and counting on.
If you are viewing this product, then you probably already know of the usefulness and versatility of task cards. They work great for centers, partner activities, and general review. Kids love them because they can move around and work at their own pace, too.
This task cards set includes:
•24 task cards for mental math strategies for addition and subtraction (color).
•24 task cards for mental math strategies for addition and subtraction (low ink version).
•1 answer document with problems given
•1 answer key
•1 Smart Notebook file to introduce the skill
My students absolutely love the opportunity to check their own work using QR codes with this activity. Students simply scan the code with a QR reader app on a mobile device with a camera such as a phone, tablet, or laptop. When they do, the correct answer magically appears! Answers even have images related to the strategy to help them more quickly identify any errors. The best part is that while students self-check you are freed to help students who need it.
If you like these task cards be sure to check out my other QR Coded products.
If you need more practice with addition and subtraction of greater numbers, check out these products:
★Addition and subtraction of Greater Numbers Task Card Bundle - all 5 sets below for half off - just $7.50
★Estimation of Addition and Subtraction Task Cards w/ Self-checking answer code
★Task Cards for Subtraction of Multi-Digit Numbers 4.NBT.B.4
★Task Cards for Addition of Multi-Digit Numbers 4.NBT.B.4
★Task Cards for Review of Addition and Subtraction of Greater Numbers
★Addition and Subtraction Using Picture Models - with unique 4x4 answer document!