Doubles to 20

 

1 + 1 = 2

2 + 2 = 4

3 + 3 = 6

4 + 4 = 8

 

5 + 5 = 10

6 + 6 = 12

7 + 7 = 14

8 + 8 = 16

 

9 + 9 = 18

10 + 10 = 20

 

Adding those doubles.

Adding those doubles.

Adding those doubles.

Is so much fun.