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