CCSS 2.NBT.B.9 Worksheets
Grade 2 · Number & Operations in Base Ten
Explain why strategies for adding and subtracting work, using place value and the properties of operations, with drawings or objects to support the reasoning.
Below are free printable worksheets that support 2.NBT.B.9. Print them as PDFs, or generate a fresh one. Every math answer key is computed in code, so it is never wrong.
Teaching guide
Explain why strategies for adding and subtracting work, using place value and the properties of operations, with drawings or objects to support the reasoning.
Start by counting on from the larger number, then move to partitioning into tens and ones and adding each part, and finally column addition with regrouping.
Generated and checked in code, so it is correct.
Adding the tens and ones columns without carrying the regrouped ten, and always counting on from the first number rather than the larger.
Addition worksheets
All addition worksheets →Sets A-F are the same worksheet with different questions - print any (or all) for fresh practice.
Subtraction worksheets
All subtraction worksheets →Sets A-F are the same worksheet with different questions - print any (or all) for fresh practice.
Place Value worksheets
All place value worksheets →Sets A-F are the same worksheet with different questions - print any (or all) for fresh practice.