Missing Number 1
5, 7, 9, __, 13, 15
11
18, 16, 14, __, 10, 8
12
1, 3, 5, 7, 9, 11, __, __, __,
13, 15, 17
16,14,12,10, __,__,__
8, 6, 4
68,67,66,65
Begin at 68 and subtract 1
4, 7, 10, __, 16, 19
13
45, 42, 39, ___, 33, 30
36
2, 6, 8, 10, 12, 14, __, __, __
16, 18, 20
142, 139, 136, 133, ___, ____, ____
130, 127, 124
6, 10, 14, 18, 22
start at 6, add 4
66, 62, ___, 54, 50
58
97, 91, ___, 79, 73
85
111, 115, 119, ____, ____, ____
123, 127, 131
203, 199, 195, ___, ___, ___
191, 187, 183
83, 79, 75, 71, 67
start at 83, subtract 4
36, ___, ___, 27, 24
33, 30
12, __, 20, 24, __
16, 28
50, 45, 40, 35, __, __, __
30, 25, 20
12, 22, 32, __, __, __
42, 52, 62
5, 10, 20, 40
start at 5, multiply the previous number by 2
Number of aliens 1 2 3 4 20
Number of antennae 2 ___ ___ ___ ___
Number of antennae 2, 4, 6, 8, 40
Number of aliens 1 2 3 4 20
Number of fingers 4 ___ ___ ___ ___
Number of fingers 4, 8, 12, 16, 80
4, 8, 16, 32, ___, ___, ___
64, 128, 256
2, 10, 50, ___, ___, ___
250, 1250, 6250
4, 12, 36, 108
start at 4, multiply the previous number by 3