1桁の足し算と引き算虫食い
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4 + 5 = 9 2 + 9 = 11
9 - 9 = 0 7 + 6 = 13
5 + 0 = 5 7 + 2 = 9
1 + 2 = 3 9 + 2 = 11
7 - 4 = 3 5 + 2 = 7
1 + 3 = 4 7 + 8 = 15
4 + 4 = 8 9 + 5 = 14
2 + 0 = 2 1 + 6 = 7
1 - 0 = 1 4 - 4 = 0
7 + 5 = 12 7 - 7 = 0
8 - 2 = 6 4 - 4 = 0
2 - 2 = 0 5 + 6 = 11
5 + 0 = 5 3 + 3 = 6
4 + 2 = 6 2 + 3 = 5
8 + 3 = 11 6 - 4 = 2
2 + 9 = 11 4 - 1 = 3
9 + 8 = 17 3 + 7 = 10
2 - 0 = 2 6 + 1 = 7
1 + 7 = 8 5 - 4 = 1
3 + 8 = 11 2 + 0 = 2
9 + 7 = 16 4 - 4 = 0
2 - 1 = 1 6 + 0 = 6
1 - 1 = 0 2 - 0 = 2
1 + 1 = 2 3 + 4 = 7
6 + 5 = 11 3 - 1 = 2
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