Cube and Square Roots

What is a cube root of number?

• a value which when multiplied by itself four times produces the original value

• a value which when multiplied by itself two times produces the original value

• a value which when multiplied by itself three times produces the original value

• a value which when multiplied by itself one time produces the original value

What is the cube root of 27 or ³√27?

• 3

• 3 X 9

• 9

• 3 X 3

When we multiply 3 by itself three times, what do we get?

• 3 x 3 x 3 = 27 = 3³

• 3 x 3 = 9 = 3²

• 3 x 1 = 3 = 3¹

The number 8 is a perfect cube because...

• 8 is not a perfect cube

• 8 × 1 = 8

• 2 × 4 = 8

• 2 × 2 × 2 = 8

• Yes

• No

• All these words are confusing!

• I knew the answer last week but I don't know now.

When you multiply an integer (a “whole” number, positive, negative or zero) times itself, the resulting product or answer is called a square number, or a perfect square or simply “a square.”

Find the example of a perfect square.

• 2 x 2 x 2 = 8 is a perfect square

• 2 x 2 = 4 is a perfect square

• 2 x 1 = 2 is a perfect square

• 2 x 0 = 0 is a perfect square

The value, which gives the number when it is multiplied by itself is called...

• My name is Root

• Square Root

• Cube Root

• One Root

Which of the following is a perfect square number?

• 35

• 49

• 61

• 42

A radical expression is an expression containing a square root.

This is what a radical looks like...

Raising a value to the third power is known as cubing the value.

• only sometimes

• not all the time

• Yes this is true