Science Fair Test 4

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1.
1 point
19 x 13
2.
1 point
14 x 19
3.
1 point
2 x 19
4.
1 point
19 x 9
5.
1 point
16 x 19
6.
1 point
19 x 7
7.
1 point
20 x 19
8.
1 point
19 x 5
9.
1 point
8 x 19
10.
1 point
6 x 19
11.
1 point
10 x 19
12.
1 point
4 x 19
13.
1 point
19 x 3
14.
1 point
12 x 19
15.
1 point
18 x 19
16.
1 point
19 x 1
17.
1 point
19 x 15
18.
1 point
19 x 17
19.
1 point
19 x 19
20.
1 point
19 x 11