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Study
Double Digit Addition/Subtraction
0
%
0
0
0
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Restart
17+20
37
Oops!
Okay!
65-17
58
Oops!
Okay!
66+15
81
Oops!
Okay!
60+10
70
Oops!
Okay!
51+18
69
Oops!
Okay!
57+19
66
Oops!
Okay!
32+59
91
Oops!
Okay!
30-10
20
Oops!
Okay!
66-18
48
Oops!
Okay!
65+17
82
Oops!
Okay!
35+20
55
Oops!
Okay!
70-20
50
Oops!
Okay!
47+10
57
Oops!
Okay!
Oops!
Okay!
85-5
80
Oops!
Okay!
10+30
40
Oops!
Okay!
78+4
82
Oops!
Okay!
74-14
60
Oops!
Okay!
43+14
57
Oops!
Okay!
60-60
0
Oops!
Okay!
10+7
17
Oops!
Okay!
26+34
60
Oops!
Okay!
77-9
68
Oops!
Okay!
36+14
50
Oops!
Okay!
34+48
82
Oops!
Okay!
80-50
30
Oops!
Okay!
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