Paulding County School District · Web viewPerfect Square Roots and Perfect Cube Roots Summative Review Remember that a cubed root has only ONE answer!! If the radicand is positive,

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Perfect Square Roots and Perfect Cube Roots Summative Review

Cubes CubeRoots

-13 = -1 3√−1 = -1-23 = -8 3√−8 = -2-33 = -27 3√−27 = -3-43 = -64 3√−64 = -4-53 = -125 3√−125 = -5-63 = -216 3√−216 = -6-73 = -343 3√−343 = -7-83 = -512 3√−512 = -8-93 = -729 3√−729 = -9-103 = -1000 3√−1000 = -10

Remember that Perfect Squares actually have TWO answers: Both Positive and Negative.

√100 = ±10

Remember that a cubed root has only ONE answer!!

If the radicand is positive, then the answer is positive.

If the radicand is negative, then the answer is negative.

Review for Summative: Estimating “Not so Perfect” Square Roots.

1) What two integers is √38 between and what is its estimated value?

2) What is the approximate value of √183?

3) If the area of a square is 47 square inches, estimate the length of each side of the square to the nearest tenths place.

4) Jared’s back yard is perfectly square in shape. He got a new puppy and needs a fence to keep it in. If he knows the area of his yard is 609 square feet, then how many feet of fence will he need to buy?

Review for Summative: Estimating “Not so Perfect” Square Roots using a number line. Using a Number Line to order real numbers.

Plot the following on a number line and estimate its value to the nearest tenth. After estimating the numbers, write them in ascending order.

1) √63

2) −√20

3) −195

4) π

5) 334

To which number groups do these numbers belong?

A) 0

B) −√121

C) 1356

D) 0.1

E) √19−11

F) 3π9π

G) 𝜋

H) √2x √2

I) 121

J) 2√10

Think about how low can the number go?

Think about how far in can the number get?