Sem A 4.4 Review

Sem A 4.4 Review

Spiral Review of Unit 4

Squares and Square Roots

• Perfect square: The Product of a number and itself.

• 144 is a perfect sqaure since  $12\cdot12=144$  

• Square root: the inverse of squaring a number

•  $\sqrt{16}$  "square root of 16

•  $\sqrt{16}=4$  since  $4\cdot4=16$  

Multiple Choice

Evaluate

 $\sqrt{36}$  

• 6

• 18

• 18

• 9

Multiple Choice

The area of a blanket is 100 inches. What is the length of one side? Hint: find the square root of 100

• 50

• 10

• 25

• 2

Real Numbers

Be able to categorize numbers . Use you brace map chart to help you.

Multiple Choice

Which statement is true?

• Integers are always whole numbers and their opposites

• All rational numbers are integers

• some whole numbers are irrational numbers

• Some irrational numbers are also rational

Multiple Choice

A perfect square is a number whose square is _________

• Whole number

• Irrational

Estimating Irrational Numbers

Using perfect sqaures and calculators to esitmate non perfect squares.

Multiple Choice

An imperfect square is a number whose square root is

• Even

• Odd

• Irrational

• Rational

Multiple Choice

The area of a square is 117 square meters. Which best represents the length of a side of the square. Hint: use a calculator to calculate the "square root of 117 "

 $\sqrt{117}$  

• 10.8 meters

• 11 meters

• 10 meters

• 11.2 meters