2 + 1 = 3
1 + 2 = 3
3 - 1 = 2
3 - 2 = 1
3 + 1 = 4
1 + 3 = 4
4 - 1 = 3
4 - 3 = 1
4 + 1 = 5
1 + 4 = 5
5 - 1 = 4
5 - 4 = 1
5 + 1 = 6
1 + 5 = 6
6 - 1 = 5
6 - 5 = 1
1 + 1 = 2
2 + 2 = 4
2 - 1 = 1
4 - 2 = 2
Besides the above math facts, kindergartners are also responsible for any
facts that involve adding or subtracting 0 or 1 to any number.