Question

Three students were asked to evaluate two cubed. The beginning part of their work is shown.

Amy

32

3×3

Juan

23

2×3

Kristen

23

2×2×2

Which student’s work is correct, and how do you know? What is the value of two cubed? Select your answers from the drop-down lists.
is correct because two cubed is the same as . The value of two cubed is .

Answer 1

Kristen is correct because two cubed is the same as 2x2x2 . The value of two cubed is 8

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Step-by-step explanation:

Cubing something means we multiply it by itself 3 times.

A few other examples are shown below

`\text{five cubed} = 5^3 = 5*5*5 = 125\\\\\text{eight cubed} = 8^3 = 8*8*8 = 512`

As the name "cubed" implies, this concept is useful to find the volume of a 3D cube where all the side lengths are the same.