Cube roots | |
---|---|
Description | |
Exercise Name: | Cube roots |
Math Missions: | 8th grade (U.S.) Math Mission, Pre-algebra Math Mission, Mathematics I Math Mission |
Types of Problems: | 1 |
The Cube roots exercise appears under the 8th grade (U.S.) Math Mission, Pre-algebra Math Mission and Mathematics I Math Mission. This exercise is an arithmetic drill for the cube root of perfect cubes.
Types of Problems[]
There is one type of problem in this exercise:
- Find the cube root of the number: This problem asks for the cube root of a given number. The user is expected to find the square root and write it in the space provided.
Strategies[]
Most of the cubes are slightly beyond what most users typically memorize. Therefore, memorizing the first twelve cubes could greatly increase proficiency on this exercise.
- All the numbers under the radicals will be perfect cubes, therefore the answers will all be integers.
- The largest number seen so far is the cube root of 1728 (or ), which equals 12.
Real-life applications[]
- Cubes and thus cube roots have applications in geometry pertaining to many volume formulas and relationships.
- The concept of square and cube roots were first realized by the Egyptians. The Egyptians used square/cube roots to make important calculations for the pyramids they constructed.