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: ________________
43
+ 31
46
+ 31
39
+ 22
21
+ 11
61
+ 12
71
+ 28
27
+ 54
66
+ 14
64
+ 14
74
+ 11
10
+ 22
85
+ 10
58
+ 37
16
+ 36
22
+ 23
88
+ 11
21
+ 55
43
+ 46
82
+ 13
36
+ 18