ISEE Middle Level Math : Squares / Square Roots

Study concepts, example questions & explanations for ISEE Middle Level Math

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Example Questions

Example Question #91 : How To Find The Square Root

\displaystyle 63\div \sqrt{81}=

Possible Answers:

\displaystyle 5103

\displaystyle 7

\displaystyle 144

Correct answer:

\displaystyle 7

Explanation:

First, find the square root:

\displaystyle \sqrt{81}=9

Then, solve:

\displaystyle 63\div 9=7

 

Example Question #91 : Squares / Square Roots

\displaystyle \sqrt{225}\div 15=

Possible Answers:

\displaystyle 15

\displaystyle 25

\displaystyle 1

\displaystyle 240

\displaystyle 210

Correct answer:

\displaystyle 1

Explanation:

First, find the square root:

\displaystyle \sqrt{225}=15

Then, solve:

\displaystyle 15\div 15=1

 

Example Question #92 : Squares / Square Roots

\displaystyle \sqrt{25}*16=

Possible Answers:

\displaystyle 41

\displaystyle 9

\displaystyle 80

\displaystyle 400

Correct answer:

\displaystyle 80

Explanation:

First, find the square root:

\displaystyle \sqrt{25}=5

Then, solve:

\displaystyle 5*16=80

 

 

Example Question #93 : Squares / Square Roots

\displaystyle \sqrt{100}-10=

Possible Answers:

\displaystyle 10

\displaystyle 0

\displaystyle 90

\displaystyle 110

Correct answer:

\displaystyle 0

Explanation:

First, find the square root:

\displaystyle \sqrt{100}=10

Then, solve:

\displaystyle 10-10=0

 

Example Question #94 : Squares / Square Roots

\displaystyle \sqrt{144}*12=

Possible Answers:

\displaystyle 148

\displaystyle 120

\displaystyle 24

\displaystyle 144

Correct answer:

\displaystyle 144

Explanation:

First, find the square root:

\displaystyle \sqrt{144}=12

Then, solve:

\displaystyle 12*12=144

 

Example Question #95 : Squares / Square Roots

\displaystyle 15* \sqrt{81}=

Possible Answers:

\displaystyle 96

\displaystyle 1215

\displaystyle 35

\displaystyle 135

Correct answer:

\displaystyle 135

Explanation:

First, find the square root: 

\displaystyle \sqrt{81}=9

Then, solve:

\displaystyle 15*9=135

 

 

Example Question #96 : Squares / Square Roots

\displaystyle 40 * \sqrt{16}=

Possible Answers:

\displaystyle 44

\displaystyle 160

\displaystyle 16

\displaystyle 640

\displaystyle 36

Correct answer:

\displaystyle 160

Explanation:

First, find the square root:

\displaystyle \sqrt{16}=4

Then, solve:

\displaystyle 40*4=160

 

Example Question #97 : Squares / Square Roots

\displaystyle 9 * \sqrt{121}=

Possible Answers:

\displaystyle 113

\displaystyle 1089

\displaystyle 99

\displaystyle 130

Correct answer:

\displaystyle 99

Explanation:

First, find the square root:

\displaystyle \sqrt{121}=11

Then, solve:

\displaystyle 9*11=99

 

Example Question #98 : Squares / Square Roots

\displaystyle \sqrt{81}*90=

Possible Answers:

\displaystyle 9

\displaystyle 810

\displaystyle 81

\displaystyle 171

Correct answer:

\displaystyle 810

Explanation:

First, find the square root:

\displaystyle \sqrt{81}=9

Then, solve:

\displaystyle 9*90=810

 

Example Question #99 : Squares / Square Roots

\displaystyle \sqrt{169}*8=

Possible Answers:

\displaystyle 1352

\displaystyle 177

\displaystyle 21

\displaystyle 161

\displaystyle 104

Correct answer:

\displaystyle 104

Explanation:

First, find the square root:

\displaystyle \sqrt{169}=13

Then, solve: \displaystyle 13*8=104

 

 

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