45 min(s)

- 1.OA.B.4

Major StandardsSupporting StandardsAdditional Standards

Standard 1.OA.B.4### 1 Math Practice Standard is aligned with this lesson

### Prerequisites for 1.OA.B.4

### Upcoming Standards for 1.OA.B.4

### 4th Grade

Understand subtraction as an unknown-addend problem. For example, subtract 10 - 8 by finding the number that makes 10 when added to 8.

Part of Major Cluster 1.OA.B

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

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