Powers to Memorize

20 = 1
21 = 2
22 = 4
23 = 8
24 = 16
25 = 32
26 = 64
27 = 128
28 = 256
29 = 512
210 = 1024


30 = 1
31 = 3
32 = 9
33 = 27
34 = 81
35 = 243
40 = 1
41 = 4
42 = 16
43 = 64
44 = 256

50 = 1
51 = 5
52 = 25
53 = 125
54 = 625

60 = 1
61 = 6
62 = 36

70 = 1
71 = 7
72 = 49
80 = 1
81 = 8
82 = 64

90 = 1
91 = 9
92 = 81

100 = 1
101 = 10
102 = 100
103 = 1000
etc.

112 = 121
122 = 144
132 = 169
142 = 196
152 = 225
202 = 400


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