Question

Find the cube of 20 A. 40 B. 400 C. 800 D. 8000

Answer 1

20 cubed is: 20*20*20, which is equal to 8000 (d)

Answer 2

The cube of 20 can be written as $20^{3}$. Split the 20 up into 2*10. Even though we are doing the cube of this value, first do $2*3=8$ and then do $10^3=1000$. Now multiply these numbers together so it is 8*1000=8000. Which is answer choice D. 8000