Using Doubles to Subtract
In this subtraction worksheet, 1st graders use addition doubling patterns to subtract numbers. For instance, one problem asks students to subtract three from six. They are directed to think that 3+3=6. Students write the answer to 6-3.
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Second Grade Adding and Subtracting
Reinforce addition and subtraction in your second grade class with a series of lessons that feature manipulatives, ten frames, spinners, and number lines. The unit is divided into three sections and includes concepts such as counting...
1st - 3rd Math CCSS: Designed
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