Khan Academy

Description: Sal has to borrow from a 0 to subtract 301 - 164. Created by Sal Khan.

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*Teacher Advisor is 100% free.- 3.NBT.A.2
- 4.OA.A.3
- 4.NBT.B.4

Major StandardsSupporting StandardsAdditional Standards

Standard 3.NBT.A.2### Prerequisites for 3.NBT.A.2

### 2nd Grade

### Upcoming Standards for 3.NBT.A.2

### 4th Grade

Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.

Part of Additional Cluster 3.NBT.A