17, __, 19, 20, 21
18 - eighteen
0, __, 2, 3, 4
1 - one
7, 8, __, 10, 11
9 - nine
8, 9, 10, __, 12
11 - eleven
0, 1, 2, __, 4
3 - three
15, 16, 17, 18, 19, __
20 - twenty
18, 19, __
20 - twenty
13, 14, 15, __, 17
16 - sixteen
6, __, 8, 9, 10
7 - Seven
16, __, 18, 19, 20
17 - seventeen
12, 13, 14, __, 16
15 - fifteen
1, __, 3, 4, 5
2 - two
10, 11, __, 13, 14
12 - twelve
3, 4, __, 6, 7
5 - five
5, __, 15, 20
10 - ten
11, 12, 13, __, 15
14 - fourteen
9, 10, 11, 12, __
13 - thirteen
5, 6, 7, __, 9
8 - eight
__, 11, 12, 13, 14
10 - Ten
15, 16, 17, 18, __
19 - nineteen