Introduction to Exponents and Squaring Numbers

The Power of Squares

Squaring a number means that you are multiplying a number by itself or raising it to the 2nd power.​

Squaring a Number

Examples...

3² = 3 x 3 = 9

5² = 5 x 5 = 25

12² = 12 x 12 = 144

Multiple Choice

What does 8² mean?

• 8 x 2

• 8 x 8

• 2 x 8

• 2x2x2x2x2x2x2x2

Are the opposite of squaring a number.

It's asking what number times itself will equal the number in the square root symbol.

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Square Roots

Square Roots

√25 mean what number times itself = 25

?² = 25
5² = 25 therefore √25 = 5

Multiple Choice

What is the symbol used to denote square roots?

• +

• -

• *

• √

Multiple Choice

Estimate √45

• between 5 and 6

• between 6 and 7

• between 7 and 8

• between 8 and 9

Multiple Choice

Estimate √70

• between 5 and 6

• between 6 and 7

• between 7 and 8

• between 8 and 9

Multiple Choice

Estimate √98

• between 7 and 8

• between 8 and 9

• between 9 and 10

• between 10 and 11

Multiple Choice

Estimate √52

• between 7 and 8

• between 8 and 9

• between 9 and 10

• between 10 and 11

Multiple Choice

Estimate √134

• between 12 and 13

• between 13 and 14

• between 14 and 15

• between 15 and 16

Multiple Choice

Estimate √210

• between 12 and 13

• between 13 and 14

• between 14 and 15

• between 15 and 16

Multiple Choice

Estimate √175

• between 12 and 13

• between 13 and 14

• between 14 and 15

• between 15 and 16