8th Grade · Expressions & Equations
Cube Root
8.EE.A.2
Definition
A value that, used three times as a factor, gives the original number. It is the inverse of cubing and equals the edge length of a cube with that volume.
Examples
- Cube root of 64 = 4, since 4×4×4=64.
- The cube root of a perfect cube is a whole number.
Key rule
Cube root undoes cubing.
Memory hook
What number times itself three times gives this?