1桁の足し算と引き算虫食い
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5 - 5 = 0 6 + 3 = 9
2 - 2 = 0 9 - 0 = 9
2 + 3 = 5 3 - 1 = 2
2 + 2 = 4 2 + 3 = 5
8 + 8 = 16 8 + 7 = 15
1 + 7 = 8 4 + 0 = 4
8 + 0 = 8 4 + 0 = 4
3 + 4 = 7 5 + 5 = 10
4 - 1 = 3 4 - 0 = 4
6 + 9 = 15 4 - 1 = 3
2 + 3 = 5 8 - 5 = 3
5 + 2 = 7 7 - 1 = 6
6 - 3 = 3 1 - 1 = 0
8 - 3 = 5 8 - 5 = 3
4 + 5 = 9 5 - 1 = 4
1 - 1 = 0 9 + 8 = 17
7 - 1 = 6 8 + 1 = 9
5 + 8 = 13 4 + 2 = 6
7 + 3 = 10 5 + 9 = 14
4 + 0 = 4 2 + 5 = 7
1 - 1 = 0 1 + 6 = 7
7 + 7 = 14 4 + 1 = 5
1 + 7 = 8 9 + 6 = 15
7 + 8 = 15 6 - 6 = 0
3 + 1 = 4 9 - 9 = 0
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