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: ________________
38
+ 31
10
+ 34
41
+ 53
73
+ 23
39
+ 33
31
+ 37
33
+ 51
11
+ 35
42
+ 23
75
+ 19
40
+ 25
46
+ 25
81
+ 10
79
+ 15
66
+ 11
15
+ 74
55
+ 37
20
+ 50
65
+ 22
23
+ 34