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