s2.1.2
Cubes
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Memorizing cubes of numbers is also highly beneficial for speed. At a minimum, knowing cubes up to 10 is essential, but memorizing further will save valuable time on the test. The following cubes are frequently encountered:
5³ = 125
6³ = 216
7³ = 343
8³ = 512
9³ = 729
10³ = 1000
11³ = 1331
12³ = 1728
13³ = 2197
14³ = 2744
15³ = 3375
16³ = 4096
17³ = 4913
18³ = 5832
19³ = 6859
20³ = 8000