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: ________________
68
+ 27
81
+ 11
17
+ 53
45
+ 40
77
+ 12
38
+ 21
82
+ 12
10
+ 83
66
+ 26
57
+ 12
76
+ 21
24
+ 18
28
+ 51
50
+ 11
71
+ 24
52
+ 13
10
+ 22
45
+ 35
85
+ 13
89
+ 10