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(答え)
     
(1)
4
5
1 2 - 3 = 7 - 3 = 4
5 5 5 5 5
(2)
1
2
1 1 - 3 = 5 - 3 = 2 = 1
4 4 4 4 4 2

(3)

3
4
1 1 - 3 = 3 - 3 = 6-3 = 3
2 4 2 4 4 4
(4)
1
2
1 1 - 5 = 4 - 5 = 8-5 = 3 = 1
3 6 3 6 6 6 2
(5)
7
8
1 3 - 1 = 11 - 1 = 11-4 = 7
8 2 8 2 8 8
(6)
5
6
1 1 - 2 = 3 - 2 = 9-4 = 5
2 3 2 3 6 6
(7)
9
10
1 2 - 1 = 7 - 1 = 14-5 = 9
5 2 5 2 10 10
(8)
11
12
1 2 - 3 = 5 - 3 = 20-9 = 11
3 4 3 4 12 12
(9)
11
12
1 1 - 1 = 7 - 1 = 14-3 = 11
6 4 6 4 12 12
(10)
17
18
1 5 - 8 = 11 - 8 = 33-16 = 17
6 9 6 9 18 18
     
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