Question
Find the cube of: $ 0.4$

Answer

$ 0.4$
$ =(0.4)^3$
$ =\left(\frac{4}{10}\right)^3$
$ =\frac{4 \times 4 \times 4}{10 \times 10 \times 10}$
$ =\frac{64}{1000}$
$ =0.064$

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