Week 12: Subtraction up to 20

Skills and concepts for Subtraction up to 20.

1. 1. Subtracting 10
2. 2. Use Ten Frames to Subtract
3. 3. Use Ten to Subtract
4. 4. Subtracting 5
5. 5. Subtracting 6
6. 6. Subtract by Counting On - Up to 20
7. 7. Count On and Use Ten to Subtract - Up to 20
8. 8. Subtract Doubles