|
|
|
|
Common Core Standards
|
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. |
|
|
|