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ADDITION AND SUBSTRACTIONS
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5+5
10
Oops!
Okay!
10-3
7
Oops!
Okay!
14-7
7
Oops!
Okay!
37 - 12
25
Oops!
Okay!
9-7
2
Oops!
Okay!
38 - 28
10
Oops!
Okay!
19-8
11
Oops!
Okay!
1+1
2
Oops!
Okay!
29+5
34
Oops!
Okay!
25 + 15
40
Oops!
Okay!
5+7
12
Oops!
Okay!
38 - 4
34
Oops!
Okay!
15-5
10
Oops!
Okay!
12+4
16
Oops!
Okay!
13+0
13
Oops!
Okay!
19+8
27
Oops!
Okay!
5+8
13
Oops!
Okay!
18-5
13
Oops!
Okay!
4+7
11
Oops!
Okay!
39 - 8
31
Oops!
Okay!
6-2
4
Oops!
Okay!
16-11
5
Oops!
Okay!
1-1
0
Oops!
Okay!
9+5
14
Oops!
Okay!
5-4
1
Oops!
Okay!
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