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 #81 : Isee Middle Level (Grades 7 8) Mathematics Achievement

\(\displaystyle \sqrt{81}-\sqrt{64}=\)

Possible Answers:

\(\displaystyle 72\)

\(\displaystyle 17\)

\(\displaystyle 1\)

Correct answer:

\(\displaystyle 1\)

Explanation:

First, find the square roots:

\(\displaystyle \sqrt{81}=9\)

\(\displaystyle \sqrt{64}=8\)

Then, solve: \(\displaystyle 9-8=1\)

 

Example Question #82 : Isee Middle Level (Grades 7 8) Mathematics Achievement

\(\displaystyle \sqrt{81}+\sqrt{64}=\)

Possible Answers:

\(\displaystyle 1\)

\(\displaystyle 72\)

\(\displaystyle 17\)

Correct answer:

\(\displaystyle 17\)

Explanation:

First, find the square roots:

\(\displaystyle \sqrt{81}=9\)

\(\displaystyle \sqrt{64}=8\)

Then, solve: \(\displaystyle 9+8=17\)

 

Example Question #83 : Isee Middle Level (Grades 7 8) Mathematics Achievement

\(\displaystyle \sqrt{64}\div \sqrt{16}=\)

Possible Answers:

\(\displaystyle 2\)

\(\displaystyle 32\)

\(\displaystyle 4\)

\(\displaystyle 12\)

Correct answer:

\(\displaystyle 2\)

Explanation:

First, find the square roots:

\(\displaystyle \sqrt{64}=8\)

\(\displaystyle \sqrt{16}=4\)

Then, solve:

\(\displaystyle 8\div 4=2\)

 

Example Question #84 : Isee Middle Level (Grades 7 8) Mathematics Achievement

\(\displaystyle 18*\sqrt{49}=\)

Possible Answers:

\(\displaystyle 125\)

\(\displaystyle 31\)

\(\displaystyle 126\)

\(\displaystyle 67\)

Correct answer:

\(\displaystyle 126\)

Explanation:

First, find the square root:

\(\displaystyle \sqrt{49}=7\)

Then, solve:

\(\displaystyle 18*7=126\)

 

Example Question #85 : Isee Middle Level (Grades 7 8) Mathematics Achievement

\(\displaystyle 39*\sqrt{36}=\)

Possible Answers:

\(\displaystyle 234\)

\(\displaystyle 1404\)

\(\displaystyle 3\)

\(\displaystyle 75\)

Correct answer:

\(\displaystyle 234\)

Explanation:

First, find the square root:

\(\displaystyle \sqrt{36}=6\)

Then, solve:

\(\displaystyle 39*6=234\)

 

Example Question #86 : Isee Middle Level (Grades 7 8) Mathematics Achievement

\(\displaystyle \sqrt{81}*47=\)

Possible Answers:

\(\displaystyle 98\)

\(\displaystyle 423\)

\(\displaystyle 3807\)

Correct answer:

\(\displaystyle 423\)

Explanation:

First, find the square root:

\(\displaystyle \sqrt{81}=9\)

Then, solve:

\(\displaystyle 9*47=423\)

 

Example Question #87 : Isee Middle Level (Grades 7 8) Mathematics Achievement

\(\displaystyle \sqrt{4}*545=\)

Possible Answers:

\(\displaystyle 2180\)

\(\displaystyle 540\)

\(\displaystyle 549\)

\(\displaystyle 1090\)

Correct answer:

\(\displaystyle 1090\)

Explanation:

First, find the square root:

\(\displaystyle \sqrt{4}=2\)

Then, solve:

\(\displaystyle 545*2=1090\)

 

Example Question #88 : Isee Middle Level (Grades 7 8) Mathematics Achievement

\(\displaystyle \sqrt{121}*44=\)

Possible Answers:

\(\displaystyle 5324\)

\(\displaystyle 484\)

\(\displaystyle 165\)

\(\displaystyle 55\)

Correct answer:

\(\displaystyle 484\)

Explanation:

First, find the square root:

\(\displaystyle \sqrt{121}=11\)

Then, solve:

\(\displaystyle 11*44=484\)

 

Example Question #89 : Isee Middle Level (Grades 7 8) Mathematics Achievement

\(\displaystyle \sqrt{144}*19=\)

Possible Answers:

\(\displaystyle 24336\)

\(\displaystyle 125\)

\(\displaystyle 163\)

\(\displaystyle 228\)

Correct answer:

\(\displaystyle 228\)

Explanation:

First, find the square root:

\(\displaystyle \sqrt{144}=12\)

Then, solve:

\(\displaystyle 12*19=228\)

 

Example Question #90 : Isee Middle Level (Grades 7 8) Mathematics Achievement

\(\displaystyle \sqrt{100}\div 2=\)

Possible Answers:

\(\displaystyle 98\)

\(\displaystyle 200\)

\(\displaystyle 20\)

\(\displaystyle 50\)

\(\displaystyle 5\)

Correct answer:

\(\displaystyle 5\)

Explanation:

First, find the square root:

\(\displaystyle \sqrt{100}=10\)

Then, solve:

\(\displaystyle 10\div 2=5\)

 

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