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12-12=?
0
Oops!
Okay!
0+9=?
9
Oops!
Okay!
10-5=?
5
Oops!
Okay!
15-8=?
7
Oops!
Okay!
16-9=?
7
Oops!
Okay!
9+6=?
15
Oops!
Okay!
12-0=?
12
Oops!
Okay!
7-4=?
3
Oops!
Okay!
6-0=?
6
Oops!
Okay!
8-5=?
3
Oops!
Okay!
7+6=?+7
6
Oops!
Okay!
4+6=?
10
Oops!
Okay!
5+3=?
8
Oops!
Okay!
12-7=?
5
Oops!
Okay!
14-6=?
8
Oops!
Okay!
15-6=?
9
Oops!
Okay!
11+0=?
11
Oops!
Okay!
5+7=?+5
7
Oops!
Okay!
16-16=?
0
Oops!
Okay!
9+3=?
12
Oops!
Okay!
?+8=8+11
11
Oops!
Okay!
14-5=?
9
Oops!
Okay!
7+9=?
16
Oops!
Okay!
7-6=?
1
Oops!
Okay!
0+7=?
7
Oops!
Okay!
10-4=?
6
Oops!
Okay!
9-0=?
9
Oops!
Okay!
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