Perfect Squares and Square Roots REVIEW

Raising a whole number to the power of 2 will result in a _____________________. This is also called squaring the number.

• perfect square

• prime number

• fraction

• negative number

What is the result of 7²?

• 49

• 56

• 63

• 72

Find the square root of these less familiar perfect squares: √225, √169, √361, √289, √625, √900.

• 15, 13, 19, 17, 25, 30

• 14, 12, 18, 16, 24, 29

• 15, 13, 18, 17, 25, 30

• 16, 14, 20, 18, 26, 31

Not all numbers are perfect squares. SELECT ALL numbers below that are not perfect squares:

16, 20, 215, 390, 52, 400, 256.

• 20

• 256

• 390

• 400

• 52

Estimating square roots of non-perfect squares: Locate the nearest perfect square before and after the given square root. Measure which if the two perfect squares the given square root is closer to. Your answer will be the square root of the closer number. What is the estimated square root of √22?

(a)  

• 16

• 25

• 5
• 4