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20 questions
10-_____=3
7
13
4
6
8-_____=3
11
4
5
7
13-_____8
6
8
5
10
15 - _____ = 6
7
8
9
10
8 - ____ = 1
9
8
5
7
14 - ____ = 8
4
5
6
7
17 - ____ = 8
7
8
9
10
20 - ____ = 10
7
8
9
10
18 - ____ = 7
12
11
9
10
11 - ____ = 6
5
4
7
6
12 - ____ = 4
6
9
7
8
7 - ____ = 4
8
11
3
1
16 - ____ = 15
5
0
3
1
19 - ____ = 14
5
8
2
6
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