Video Transcript
Evaluate four cubed.
The superscript three in this
question means that we need to cube the number four. When cubing any number, we need to
multiply it by itself then itself again. We can perform the calculation in
any order, but we will begin by multiplying the first two fours. We know that four multiplied by
four is equal to 16, so four cubed is equal to 16 multiplied by four. One way of working this out is
using column multiplication. Four multiplied by six is equal to
24, so we put a four in the ones column and carry the two. Four multiplied by one is four, and
adding the two that we carried gives us six. 16 multiplied by four is equal to
64. This means that four cubed is also
equal to 64.
