Week 2: Addition and subtraction

Skills and concepts for Addition and subtraction.

1. 1. Use number lines to add three-digit numbers
2. 2. Use number lines to subtract three-digit numbers
3. 3. Use compensation to add: up to three digits
4. 4. Use compensation to subtract: up to three digits
5. 5. Complete the addition or subtraction sentence
6. 6. Relate addition and subtraction sentences