Perfect Cube Numbers (Part 2)

The video tutorial explains the concept of perfect cubes using examples of unit cubes. It demonstrates that 8 unit cubes can form a larger cube, making 8 a perfect cube number, while 11 cannot. The definition of a perfect cube is provided, stating it is a number formed by multiplying a whole number by itself three times. Examples include 64 as 4 cubed and 8 as 2 cubed. The video lists the first five perfect cube numbers: 1, 8, 27, 64, and 125, and concludes by summarizing the method to identify perfect cubes.

Why is 8 considered a perfect cube?

• Because it can form a larger cube with equal side lengths

• Because it is less than 10

• Because it can be divided by 2

• Because it is an even number

Which of the following numbers is not a perfect cube?

• 64

• 11

• 8

• 27

How can a perfect cube number be defined?

• A number that is less than 100

• A number that can be made by multiplying a whole number by itself three times

• A number that can be divided by 2

• A number that is a multiple of 3

Which of the following is a perfect cube of 4?

• 64

• 32

• 16

• 128

What are the first five perfect cube numbers?

• 1, 8, 27, 64, 125

• 1, 4, 9, 16, 25

• 3, 9, 27, 81, 243

• 2, 8, 18, 32, 50