Cubes

# Cubes

Basic GCSE(F)

Multiplying a number by itself, then multiplying by itself again is cubing a number:

4 x 4 x 4 = 43 = 64.

The small 3 after the number indicates that it is being cubed.

A negative number that is cubed will result in a negative number:

-33 = -3 x -3 x -3 = -27

A number less than 1 will result in a smaller number:

0.23 = 0.2 x 0.2 x 0.2 = 0.008

Fractions can also be cubed:

(frac(1)(2))3 = frac(1)(2) x frac(1)(2) x frac(1)(2) = frac(1)(8)

1. What is 0.53?