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Study
Subtraction with Regrouping
0
%
0
0
0
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Restart
17-8
9
Oops!
Okay!
85-26
59
Oops!
Okay!
31-14
17
Oops!
Okay!
71-18
53
Oops!
Okay!
56-28
28
Oops!
Okay!
21-18
3
Oops!
Okay!
73-37
36
Oops!
Okay!
64-19
45
Oops!
Okay!
52-18
34
Oops!
Okay!
86-58
28
Oops!
Okay!
36-29
7
Oops!
Okay!
92-77
15
Oops!
Okay!
52-16
36
Oops!
Okay!
50-11
39
Oops!
Okay!
46-46
0
Oops!
Okay!
63-25
38
Oops!
Okay!
25-16
9
Oops!
Okay!
54-16
38
Oops!
Okay!
48-29
19
Oops!
Okay!
91-66
25
Oops!
Okay!
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