Addition Facts less than 20- Addends 5 to 10
In this addition facts learning exercise, 1st graders find the sum in 20 problems in which the addends are between 5-10. They find sums which are less than 20.
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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