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10 questions
6+6=
11
12
13
14
9+9=
14
16
18
20
10+10=
15
20
25
30
7+7=
12
13
14
15
9+6=
12
13
14
15
18-12=
8
7
6
5
15-8=
6
7
8
9
14-9=
9
8
7
5
11-9=
1
2
3
4
50+50=
20
50
80
100
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