2. Real Number System Study Guide

Evaluate the following: a) 2√49 = _______ b) √100 = _______ c) 10 + √169 = _______

• 23

• b) √100 = _______

• 10

• a) 2√49 =

• 14

• c) 10 + √169 = _______

The square pool at Sammie’s gym has an area of 144 square feet. What is the length of one side of the pool?

• 10 feet

• 12 feet

• 14 feet

• 16 feet

Alaina bought a square frame for her desk that has an area of 81 square inches. What is the perimeter of the frame?

• 36 inches

• 40 inches

• 28 inches

• 32 inches

Between which two whole numbers does √150 lie?

• 12 and 13

• 13 and 14

• 14 and 15

• 15 and 16

Tags

CCSS.8.NS.A.2

Which of the following is a true statement?

• 7 < √65 < 8

• 2 < √7 < 3

• 10 < √95 < 11

• 13 < √160 < 14

A square sandbox has an area of 75 square feet. Estimate the length of one of the sides of the sandbox.

• 8.5 feet

• 8.7 feet

• 8.9 feet

• 9.1 feet

Shiloh estimated √190 by placing the point on the number line below. Which of the following methods could improve his estimate?

• move the point further left

• move the point further right

• Place the point randomly on the number line.

Which point below is the best estimate for √5?

• A

• B

• C

The point below best represents which of the following?

• √80

• √72

• √67

The point below best represents which of the following?

• √142

• √125

• √146

Tags

CCSS.8.NS.A.2