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(答え)
     
(1)
17
48
13 - 11 = 39-22 = 17
16 24 48 48
(2)
13
54
17 - 19 = 51-38 = 13
18 27 54 54

(3)

11
75
13 - 18 = 65-54 = 11
15 25 75 75
(4)
5
96
19 - 13 = 57-52 = 5
32 24 96 96
(5)
9
80
37 - 13 = 74-65 = 9
40 16 80 80
(6)
5
18
19 - 16 = 57-32 = 25 = 5
30 45 90 90 18
(7)
1
6
15 - 16 = 45-32 = 13 = 1
26 39 78 78 6
(8)
7
30
13 - 22 = 65-44 = 21 = 7
18 45 90 90 30
(9)
5
12
27 - 23 = 81-46 = 35 = 5
28 42 84 84 12
(10)
1
10
31 - 11 = 62-55 = 7 = 1
35 14 70 70 10
     
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