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: ________________
37
+ 21
61
+ 26
37
+ 13
71
+ 11
24
+ 65
35
+ 45
31
+ 24
30
+ 19
44
+ 49
87
+ 11
14
+ 18
66
+ 33
23
+ 43
69
+ 10
29
+ 15
65
+ 34
51
+ 42
88
+ 10
21
+ 59
78
+ 13