Addition Facts to 20
In this math worksheet, students solve 12 addition problems with numbers between 1 and 12. Each fact is written vertically but the digits are not aligned correctly.
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Add Up To Four 2-Digit Numbers by Using Addition Facts and Friendly Numbers
Learning to recognize friendly numbers is a big step in developing fluency with addition. Looking at multiple real world examples, the instructor models how to rearrange addition number sentences and use friendly numbers to quickly and...
5 mins 1st - 3rd Math CCSS: Designed