1桁の足し算と引き算虫食い
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5 + 5 = 10 2 - 2 = 0
6 + 9 = 15 5 - 1 = 4
2 - 2 = 0 5 + 5 = 10
9 + 5 = 14 6 + 2 = 8
6 - 4 = 2 8 - 7 = 1
3 + 6 = 9 6 - 5 = 1
5 - 2 = 3 7 + 7 = 14
9 - 8 = 1 4 - 3 = 1
7 + 1 = 8 2 - 0 = 2
8 + 5 = 13 8 + 4 = 12
8 - 1 = 7 5 + 1 = 6
8 + 9 = 17 4 - 2 = 2
7 + 6 = 13 9 + 4 = 13
2 - 1 = 1 8 - 6 = 2
1 + 9 = 10 4 + 8 = 12
2 - 0 = 2 1 - 0 = 1
3 - 3 = 0 8 + 1 = 9
3 - 3 = 0 7 + 6 = 13
2 + 1 = 3 2 + 6 = 8
8 + 6 = 14 9 - 6 = 3
9 + 1 = 10 2 - 2 = 0
6 - 6 = 0 9 + 3 = 12
5 + 5 = 10 7 + 5 = 12
2 + 3 = 5 8 - 3 = 5
4 + 1 = 5 1 - 1 = 0
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