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: ________________
65
+ 31
46
+ 26
37
+ 31
48
+ 43
22
+ 75
22
+ 21
71
+ 19
19
+ 63
70
+ 11
33
+ 19
38
+ 31
34
+ 37
63
+ 16
31
+ 24
82
+ 15
81
+ 16
80
+ 14
88
+ 10
68
+ 26
84
+ 13