Exploring Perfect Cubes and Cube Roots

The video tutorial introduces cube roots, explaining their relationship with perfect cubes and how to evaluate them. It covers cubing numbers and variables, identifying patterns, and using cube roots to calculate volume. Practical examples are provided to solve problems involving cube roots, such as determining the side length of a cube given its volume.

What is the main focus of today's lesson?

• Multiplication and division

• Addition and subtraction

• Perfect cubes and cube roots

• Perfect squares and square roots

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CCSS.8.EE.A.2

What is the cube of 3?

• 81

• 27

• 9

• 64

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CCSS.8.EE.A.2

How do you calculate the cube of a number?

• Multiply the number by itself twice

• Multiply the number by itself once

• Multiply the number by itself three times

• Add the number to itself three times

Tags

CCSS.8.EE.A.2

What is the cube root of 64?

• 2

• 5

• 3

• 4

Tags

CCSS.8.EE.A.2

Which of the following is true about cube roots?

• They are the inverse of perfect squares

• They are the inverse of cubed powers

• They are the same as cubed powers

• They are the same as square roots

Tags

CCSS.8.EE.A.2

What is the formula for the volume of a cube?

• Length + Width + Height

• Side x Side x Side

• Side + Side + Side

• Length x Width x Height

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CCSS.5.MD.C.5B

CCSS.6.G.A.2

What is the relationship between cube roots and volume calculation?

• Cube roots help calculate volume

• Cube roots help calculate area

• Cube roots help calculate perimeter

• Cube roots help calculate surface area

Tags

CCSS.8.EE.A.2

If the volume of a cube is 125 cubic feet, what is the length of one side?

• 3 feet

• 4 feet

• 5 feet

• 6 feet

Tags

CCSS.8.EE.A.2

What is the cube root of 729?

• 8

• 7

• 9

• 10

Tags

CCSS.8.EE.A.2

If a box has a volume of 729 cubic inches, can it fit in a space of 8 inches?

• Yes, it can fit

• No, it cannot fit

• Only if the box is compressed

• It depends on the shape of the box

Tags

CCSS.8.EE.A.2