## 4.4 **Computation—Fluency in Addition and Subtraction to 1,000**

**Use place value understanding and properties of operations to perform multi-digit arithmetic.**

**4**

4 A range of algorithms may be used.

3.NBT.2 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.

__strategies to view__

__strategies for addition and subtraction__-click here

__subtracting larger numbers__-click here

**Essential questions**

• How can you use place value to add/subtract a three-digit number?

• How can your understanding of addition be used when you are subtracting?

• How can you accurately add and subtract within 1,000 using at least two strategies?