Question

Making use of the cube root table, find the cube root
7000

Answer 1

We have: $$7000=70\times 100$$

∴ $$\sqrt[3]{7000}=\sqrt[3]{7\times 1000}=\sqrt[3]{7}\times \sqrt[3]{1000}$$

By the cube root table, we have: 

$$\sqrt[3]{7}=1.913\text{ and }\sqrt[3]{1000}=10$$

∴ $$\sqrt[3]{7000}=\sqrt[3]{7}\times \sqrt[3]{1000}=1.913\times 10=19.13$$