Cube Numbers Explained

This video tutorial explains cube numbers, which are numbers that can be arranged into a cube using the same number of smaller cubes. It provides examples, such as the number 8, which can form a cube, unlike the number 5. The video further explains that a cube number is the product of three equal numbers and introduces the concept of using the power of three as shorthand. The first four cube numbers are given as examples, and viewers are encouraged to solve practice questions to reinforce their understanding.

What is a cube number?

• A number that can be divided by 3

• A number that can be arranged into a cube using smaller cubes

• A number that is a multiple of 5

• A number that is a square

Which of the following is NOT a cube number?

• 8

• 27

• 5

• 64

How is a cube number formed?

• By subtracting a number from itself

• By adding a number to itself three times

• By multiplying a number by itself twice

• By dividing a number by itself

What is the shorthand notation for a cube number?

• Using the power of two

• Using the power of five

• Using the power of three

• Using the power of four

Which of the following is one of the first four cube numbers?

• 45

• 27

• 16

• 81