1.1 #2, 6, 10, 16, 18, 20, 27
1.2 #1, 2, 3, 6, 8
1.3 #2, 4, 7, 14, 23, 34, 36, 40
1.4 #3, 5, 8, 9, 10, 11, 12, 30, 32
1.5 #4, 6, 10, 24(a), 36, 38, 40, 50, 53, 54
1.6 #2, 4, 6, 7, 10, 12, 16, 17
2.1 #4, 7, 8
2.2 #2, 6, 8, 20, 22, 42
2.3 #2, 4, 10, 14
2.4 #2, 6
3.1 #2, 4, 6, 8, 12
3.2 #2. 8, 10, 30
3.3 #2, 8, 12, 13 (do this for a \(2\times 2\))
3.4 #2, 12
3.5 #1, 2
4.1 #10, 12, 16, 18, 20
4.2 #1, 5, 10, 12, 13, 14
4.3 #1, 2, 3, 4, 8, 12, 14, 18, 20, 30
4.4 #2, 3, 6, 9, 13
4.5 #13, 15, 21, 23, 24`
4.6 #2, 4, 16, 17, 26, 34
4.7 #2, 4, 8, 14, 16, 22
4.8 #1, 2, 4, 8, 10, 14, 24, 31-34, 38
4.9 #6, 8, 10, 16, 26, 28, 30, 36
5.1 #2, 6, 10, 17, 24, 32, 34
5.2 #2, 6, 7, 10, 14, 16, 19, 23, 25, 30, 44
5.3 #2, 6, 10, 18, 23, 24
5.4 #2, 5, 8, 14, 18, 23
6.1 #2, 3, 4, 5, 8, 13, 16, 20, 24, 25, 32, 34
6.2 #2, 6, 4, 10, 18, 20
6.3 #2, 4, 6, 10, 11, 20, 22
6.4 #1, 2, 4, 5, 6, 9
6.5 #4, 5, 6, 11
7.1 #1, 2, 8, 10, 11, 12, 15, 20, 28, 32
7.2 #2, 4, 6, 8, 10, 13
7.3 #1, 8, 9, 11, 12, 16, 18, 24, 32