2.7 Adding and Subtracting within 1,000
Unit Goals
- Students use place value understanding, the relationship between addition and subtraction, and properties of operations to add and subtract within 1,000.
Section A Goals
- Add and subtract numbers within 1,000 without composition or decomposition, and use strategies based on the relationship between addition and subtraction and the properties of operations.
Section B Goals
- Add numbers within 1,000 using strategies based on place value understanding, including composing a ten or hundred.
Section C Goals
- Subtract numbers within 1,000 using strategies based on place value understanding, including decomposing a ten or hundred.