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: ________________
79
+ 20
11
+ 57
20
+ 63
83
+ 13
41
+ 58
71
+ 19
59
+ 31
17
+ 66
83
+ 16
27
+ 20
37
+ 20
48
+ 46
53
+ 30
62
+ 22
82
+ 15
84
+ 11
23
+ 10
40
+ 51
38
+ 57
56
+ 18