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: ________________
31
+ 23
50
+ 34
34
+ 41
17
+ 22
71
+ 23
86
+ 12
41
+ 11
82
+ 10
72
+ 11
39
+ 43
29
+ 65
76
+ 21
43
+ 32
27
+ 21
33
+ 35
70
+ 24
40
+ 23
66
+ 17
40
+ 15
88
+ 11