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50 questions
2x1
2
3
4
2x2
4
5
6
2x3
6
8
12
2x4
12
8
9
2x5
10
12
14
2x6
12
14
18
2x7
14
20
18
2x8
20
16
19
2x9
18
19
20
2x10
20
12
19
3x1
3
4
1
3x2
6
4
10
3x3
9
6
10
3x4
10
16
12
3x5
20
15
17
3x6
21
18
16
3x6
21
18
16
3x7
25
24
21
3x8
27
24
21
3x9
27
21
28
3x10
30
40
20
4x1
4
5
6
4x2
9
8
6
4x3
12
16
14
4x4
16
18
20
4x5
20
21
24
4x6
24
23
21
4x7
28
21
27
4x8
32
23
30
4x9
27
36
28
4x10
14
4
40
2+3
4
5
6
6+5
13
12
11
8+9
18
13
17
10-5
3
4
5
20-10
25
13
10
11
8+6
16
12
14
4+9
13
12
11
6+7
15
14
12
13
6+6
15
14
12
11
8+5
13
12
14
13+7
11
10
20
21
20-6
6
15
12
14
6+9
16
12
15
14
7+5
23
14
12
13
3+9
14
11
12
15
6+8
12
14
15
7+8
16
15
13
9+7
17
16
12
10+20
11
3
30
20
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