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: ________________
28
+ 15
33
+ 62
67
+ 18
37
+ 36
51
+ 16
89
+ 10
75
+ 20
16
+ 24
14
+ 83
79
+ 12
60
+ 28
48
+ 37
82
+ 16
79
+ 16
52
+ 13
11
+ 22
43
+ 33
19
+ 54
26
+ 57
40
+ 38