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Subtraction
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0
0
0
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Restart
50-3
47
Oops!
Okay!
70-8
62
Oops!
Okay!
71-40
31
Oops!
Okay!
46-10
36
Oops!
Okay!
33-10
23
Oops!
Okay!
63-20
43
Oops!
Okay!
25-5
20
Oops!
Okay!
71-8
63
Oops!
Okay!
47-20
27
Oops!
Okay!
23-10
13
Oops!
Okay!
40-5
35
Oops!
Okay!
54-30
24
Oops!
Okay!
34-15
19
Oops!
Okay!
98-8
90
Oops!
Okay!
89-50
39
Oops!
Okay!
22-4
18
Oops!
Okay!
34-4
30
Oops!
Okay!
92-9
83
Oops!
Okay!
56-6
50
Oops!
Okay!
80-2
78
Oops!
Okay!
19-11
8
Oops!
Okay!
52-5
47
Oops!
Okay!
16-8
8
Oops!
Okay!
49-9
40
Oops!
Okay!
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