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