Page 18 - fun with math
P. 18
What Comes....
After? Before? In between?
3 5 13 15
6 7 18 20
9 11 4 6
12 17 2 4
15 20 15 17
8 9 7 9
4 13 12 14
2 3 9 11
16 19 10 12
10 14 16 18
18
