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: ________________
14
+ 55
77
+ 12
25
+ 68
67
+ 28
50
+ 30
22
+ 31
87
+ 11
65
+ 16
20
+ 30
45
+ 13
32
+ 63
77
+ 20
30
+ 13
15
+ 16
12
+ 75
87
+ 12
87
+ 12
14
+ 64
54
+ 21
31
+ 27