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