1 Adding Numbers without Carrying

2 Multiplying and Dividing by 4

3 Multiplying by 5

4 Multiplying by 11

5 Multiplying by 12

6 Multiplying by Numbers that end in 1/2

7 Multiplying by Splitting Numbers

8 Dividing by 4

9 Dividing by Numbers that end in 1/2

10 Squaring by numbers that end in 5