ISEE Middle Level Math : ISEE Middle Level (grades 7-8) Mathematics Achievement

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

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Example Questions

Example Question #141 : Isee Middle Level (Grades 7 8) Mathematics Achievement

\(\displaystyle \sqrt{144}*\sqrt{9}=\)

Possible Answers:

\(\displaystyle 135\)

\(\displaystyle 153\)

\(\displaystyle 24\)

\(\displaystyle 36\)

Correct answer:

\(\displaystyle 36\)

Explanation:

First, find the square roots:

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

\(\displaystyle \sqrt{9}=3\)

Then, solve the equation: \(\displaystyle 12*3=36\)

Answer: \(\displaystyle 36\)

Example Question #142 : Isee Middle Level (Grades 7 8) Mathematics Achievement

\(\displaystyle \sqrt{64}* \sqrt{81}*\sqrt{49}=\)

Possible Answers:

\(\displaystyle 500\)

\(\displaystyle 24\)

\(\displaystyle 504\)

\(\displaystyle 508\)

Correct answer:

\(\displaystyle 504\)

Explanation:

First, find the square roots:

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

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

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

Then, solve the equation: \(\displaystyle 8*9*7=504\)

Answer: \(\displaystyle 504\)

Example Question #143 : Isee Middle Level (Grades 7 8) Mathematics Achievement

\(\displaystyle \sqrt{36}* \sqrt{49}*\sqrt{64}=\)

Possible Answers:

\(\displaystyle 330\)

\(\displaystyle 336\)

\(\displaystyle 678\)

\(\displaystyle 21\)

Correct answer:

\(\displaystyle 336\)

Explanation:

First, find the square roots:

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

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

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

Then, solve the equation: \(\displaystyle 6*7*8=336\)

Answer: \(\displaystyle 336\)

Example Question #144 : Isee Middle Level (Grades 7 8) Mathematics Achievement

\(\displaystyle \sqrt{9}* \sqrt{100}*\sqrt{81}=\)

Possible Answers:

\(\displaystyle 22\)

\(\displaystyle 290\)

\(\displaystyle 270\)

\(\displaystyle 101\)

Correct answer:

\(\displaystyle 270\)

Explanation:

First, find the square roots:

\(\displaystyle \sqrt{9}=3\)

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

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

Then, solve the equation: \(\displaystyle 3*10*9=270\)

Answer: \(\displaystyle 270\)

 

Example Question #142 : Isee Middle Level (Grades 7 8) Mathematics Achievement

Simplify: \(\displaystyle \small \sqrt{243}\)

Possible Answers:

\(\displaystyle \small 3\sqrt{81}\)

\(\displaystyle \small 3\sqrt9\)

\(\displaystyle \small 27\)

\(\displaystyle \small 9\sqrt3\)

Correct answer:

\(\displaystyle \small 9\sqrt3\)

Explanation:

\(\displaystyle \small \sqrt{243}=\sqrt{81}\times \sqrt{3}=9\times \sqrt3=9\sqrt3\)

Example Question #143 : Isee Middle Level (Grades 7 8) Mathematics Achievement

Simplify: \(\displaystyle \small \sqrt{245}\)

Possible Answers:

\(\displaystyle \small 49\sqrt5\)

\(\displaystyle \small 5\sqrt{49}\)

\(\displaystyle \small 5\sqrt7\)

\(\displaystyle \small 7\sqrt5\)

Correct answer:

\(\displaystyle \small 7\sqrt5\)

Explanation:

\(\displaystyle \small \sqrt{245}=\sqrt{49}\times \sqrt{5}=7\times \sqrt5=7\sqrt5\)

Example Question #144 : Isee Middle Level (Grades 7 8) Mathematics Achievement

\(\displaystyle \sqrt{169}-\sqrt{144}=\)

Possible Answers:

\(\displaystyle 1\)

\(\displaystyle 22\)

\(\displaystyle 25\)

\(\displaystyle 156\)

Correct answer:

\(\displaystyle 1\)

Explanation:

Find the square roots:

\(\displaystyle \sqrt{169}=13\)

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

Then solve the equation:

\(\displaystyle 13-12=1\)

 

Example Question #145 : Isee Middle Level (Grades 7 8) Mathematics Achievement

\(\displaystyle \sqrt{10000}-\sqrt{100}=\)

Possible Answers:

\(\displaystyle 90\)

\(\displaystyle 100\)

\(\displaystyle 10\)

\(\displaystyle 1000\)

Correct answer:

\(\displaystyle 90\)

Explanation:

Find the square roots:

\(\displaystyle \sqrt{10000}=100\)

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

Then solve the equation:

\(\displaystyle 100-10=90\)

 

 

 

Example Question #146 : Isee Middle Level (Grades 7 8) Mathematics Achievement

\(\displaystyle \sqrt{81}+\sqrt{169}=\)

Possible Answers:

\(\displaystyle 24\)

 

 

\(\displaystyle 22\)

\(\displaystyle 250\)

\(\displaystyle 4\)

Correct answer:

\(\displaystyle 22\)

Explanation:

Find the square roots:

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

\(\displaystyle \sqrt{169}=13\)

Then solve the equation:

\(\displaystyle 9+13=22\)

 

 

Example Question #150 : How To Find The Square Root

\(\displaystyle \sqrt{4}+\sqrt{25}*\sqrt{9}=\)

Possible Answers:

\(\displaystyle 19\)

\(\displaystyle 17\)

\(\displaystyle 38\)

\(\displaystyle 12\)

Correct answer:

\(\displaystyle 17\)

Explanation:

First find the square roots:

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

\(\displaystyle \sqrt{25}=5\)

\(\displaystyle \sqrt{9}=3\)

Following order of operations, solve the equation-multiplying first, then adding:

\(\displaystyle 2+5*3=\)

\(\displaystyle 2+15=17\)

Answer: \(\displaystyle 17\)

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