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(答え)
     
(1)
1
3
2 - 1 = 2-1 = 1
3 3 3 3
(2)
2
7
5 - 3 = 5-3 = 2
7 7 7 7

(3)

7
9
8 - 1 = 8-1 = 7
9 9 9 9
(4)
1
6
1 - 1 = 3-2 = 1
2 3 6 6
(5)
1
4
1 - 1 = 2-1 = 1
2 4 4 4
(6)
3
10
1 - 1 = 5-2 = 3
2 5 10 10
(7)
3
8
1 - 1 = 4-1 = 3
2 8 8 8
(8)
1
2
3 - 1 = 3-1 = 2 = 1
4 4 4 4 2
(9)
2
3
5 - 1 = 5-1 = 4 = 2
6 6 6 6 3
(10)
1
4
7 - 5 = 7-5 = 2 = 1
8 8 8 8 4
     
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