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