paulding county school district · web viewperfect square roots and perfect cube roots summative...

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Name ________________________________ Date_______________ Pd__________ Perfect Square Roots and Perfect Cube Roots Summative Review Cubes Cube Roots -1 3 = -1 3 1 = -1 -2 3 = -8 3 8 = -2 -3 3 = -27 3 27 = -3 -4 3 = -64 3 64 = -4 -5 3 = -125 3 125 = - 5 -6 3 = -216 3 216 = - 6 -7 3 = -343 3 343 = - Remember that Perfect Squares actually have TWO answers: Both Positive and Negative. 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

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Page 1: 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,

Name ________________________________ Date_______________ Pd__________

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.

Page 2: 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,

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?

Page 3: 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,

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

Page 4: 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,

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?