- 1.OA.D.8

Major StandardsSupporting StandardsAdditional Standards

Standard 1.OA.D.8### Upcoming Standards for 1.OA.D.8

### 4th Grade

Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8 + ? = 11, 5 = __ - 3, 6 + 6 = __.

Part of Major Cluster 1.OA.D

The Understood offers evidence-based strategies that benefit all students, especially those with learning differences and attention issues.

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