Common Core StandardsAdd and Subtract (3 Numbers) |
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|---|---|
| Grade: | 1st Grade |
| Standard: | MA.1.AR.2.3 |
| Description: | Determine the unknown whole number in an addition or subtraction equation, relating three whole numbers, with the unknown in any position. |
| Standard: | 1.5.G |
| Description: | apply properties of operations to add and subtract two or three numbers. |
