1桁の足し算と引き算虫食い
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5 - 3 = 2 2 - 1 = 1
7 - 7 = 0 6 + 1 = 7
1 - 1 = 0 5 + 7 = 12
2 - 2 = 0 3 - 3 = 0
6 + 5 = 11 1 - 1 = 0
4 - 1 = 3 7 + 7 = 14
7 - 4 = 3 1 + 0 = 1
1 + 7 = 8 2 - 0 = 2
6 - 5 = 1 7 + 7 = 14
8 - 1 = 7 4 - 2 = 2
4 + 5 = 9 6 - 2 = 4
5 - 4 = 1 5 - 4 = 1
2 - 2 = 0 8 - 5 = 3
5 - 5 = 0 4 + 8 = 12
4 - 0 = 4 9 + 7 = 16
9 + 5 = 14 9 + 5 = 14
8 + 9 = 17 6 + 1 = 7
4 + 5 = 9 1 - 0 = 1
3 + 8 = 11 3 + 7 = 10
9 - 9 = 0 4 + 1 = 5
8 - 7 = 1 1 + 1 = 2
3 + 8 = 11 9 + 2 = 11
6 - 3 = 3 8 + 7 = 15
2 - 1 = 1 4 + 9 = 13
2 + 4 = 6 6 - 4 = 2
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