OPTIONS:
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>Addition ( + )
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>Subtraction ( - )
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>Subtraction Adv ( - )
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>1
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>2
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>3
addition
Name/名前: ________________
20
+ 79
79
+ 11
53
+ 46
42
+ 37
82
+ 10
80
+ 18
69
+ 23
39
+ 39
67
+ 26
23
+ 10
12
+ 61
65
+ 10
50
+ 40
42
+ 11
21
+ 56
54
+ 18
70
+ 26
20
+ 52
63
+ 23
89
+ 10