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 #22 : Data Analysis

Find the range of this set of numbers:

\(\displaystyle 86,68,28,82,26,62,88\)

Possible Answers:

\(\displaystyle 86\)

\(\displaystyle 88\)

\(\displaystyle 62\)

\(\displaystyle 26\)

\(\displaystyle 68\)

Correct answer:

\(\displaystyle 62\)

Explanation:

First, order the numbers from least to greatest:

\(\displaystyle 26, 28, 62, 68, 82, 86, 88\)

Then, subtract the smallest number from the largest:

\(\displaystyle 88-26=62\)

 

Example Question #21 : Range

Find the range of this set of numbers:

\(\displaystyle 434, 444, 343, 344, 433, 443, 333, 334\)

Possible Answers:

\(\displaystyle 101\)

\(\displaystyle 110\)

\(\displaystyle 99\)

\(\displaystyle 111\)

Correct answer:

\(\displaystyle 111\)

Explanation:

First, order the numbers from least to greatest:

\(\displaystyle 333,334,343,433,434,443,444\)

Then, subtract the smallest from the largest number:

\(\displaystyle 444-333=111\)

 

 

Example Question #22 : Range

Find the range in this set of numbers:

\(\displaystyle 3773, 3737, 3373, 3333, 3777\)

Possible Answers:

\(\displaystyle 404\)

\(\displaystyle 444\)

\(\displaystyle 400\)

\(\displaystyle 440\)

Correct answer:

\(\displaystyle 444\)

Explanation:

First, order the numbers from least to greatest:

\(\displaystyle 3333, 3373, 3737, 3773, 3777\)

Then, subtract the smallest from the largest number:

\(\displaystyle 3777-3333=444\)

 

 

Example Question #23 : Range

What is the range of the following numbers?

\(\displaystyle 7,14,11,12,9,6\)

Possible Answers:

\(\displaystyle 8\)

\(\displaystyle 10.2\)

\(\displaystyle 9.8\)

\(\displaystyle 10\)

Correct answer:

\(\displaystyle 8\)

Explanation:

The range is determined by subtracting the smallest value from the largest value.

\(\displaystyle range=14-6=8\)

Example Question #24 : Range

Find the range in this set of numbers:

\(\displaystyle 588, 589, 598, 598, 599\)

Possible Answers:

\(\displaystyle 10\)

\(\displaystyle 588\)

\(\displaystyle 599\)

\(\displaystyle 11\)

Correct answer:

\(\displaystyle 11\)

Explanation:

First, order the numbers from least to greatest:

\(\displaystyle 588, 589, 598, 598, 599\)

Then, subtract the smallest number from the largest: \(\displaystyle 599-588=11\)

Answer: The range is 11.

Example Question #25 : Range

Find the range in this set of numbers:

\(\displaystyle 245, 244, 254, 255, 254\)

Possible Answers:

\(\displaystyle 10\)

\(\displaystyle 254\)

\(\displaystyle 11\)

\(\displaystyle 244\)

Correct answer:

\(\displaystyle 11\)

Explanation:

First, order the numbers from least to greatest:

\(\displaystyle 244, 245, 254, 254, 255\)

Then, subtract the smallest number from the largest:

\(\displaystyle 255-244=11\)

Answer: The range is 11.

Example Question #26 : Range

Find the range in this set of numbers: 

\(\displaystyle 1185, 1518, 1158, 1581, 1851, 1581, 1815\)

Possible Answers:

\(\displaystyle 690\)

\(\displaystyle 696\)

\(\displaystyle 693\)

\(\displaystyle 1581\)

Correct answer:

\(\displaystyle 693\)

Explanation:

First, order the numbers from least to greatest:

\(\displaystyle 1158, 1185, 1518, 1581, 1581, 1815, 1851\)

Then, subtract the smallest number from the largest:

\(\displaystyle 1851-1158=693\)

Answer: The range is \(\displaystyle 693\).

Example Question #27 : Range

Find the range in this set of numbers: 

\(\displaystyle 7890, 7980, 7889, 7898,7990\)

Possible Answers:

\(\displaystyle 90\)

\(\displaystyle 110\)

\(\displaystyle 101\)

\(\displaystyle 7890\)

Correct answer:

\(\displaystyle 101\)

Explanation:

First, arrange the numbers from least to greatest:

\(\displaystyle 7889, 7890, 7898, 7980, 7990\)

Then, subtract the smallest number from the largest:

\(\displaystyle 7990-7889=101\)

Answer: The range is \(\displaystyle 101\).

 

 

Example Question #28 : Range

Find the range in this set of numbers:

\(\displaystyle 55, 50, 52, 56, 54, 56,51\)

Possible Answers:

\(\displaystyle 10\)

\(\displaystyle 54\)

\(\displaystyle 6\)

\(\displaystyle 56\)

Correct answer:

\(\displaystyle 6\)

Explanation:

First, order the numbers from least to greatest:

\(\displaystyle 50, 51, 52, 54, 55, 56, 56\)

Then, subtract the smallest number from the largest number: \(\displaystyle 56-50=6\)

Answer: The range is \(\displaystyle 6\).

Example Question #29 : Range

Find the range in this set of numbers:

\(\displaystyle 16, 12 , 13, 17, 18, 19, 11\)

Possible Answers:

\(\displaystyle 8\)

\(\displaystyle 11\)

\(\displaystyle 13\)

\(\displaystyle 16\)

Correct answer:

\(\displaystyle 8\)

Explanation:

First, order the numbers from least to greatest:

\(\displaystyle 11, 12, 13, 16, 17, 18, 19\)

Then, subtract the smallest number from the largest: \(\displaystyle 19-11=8\)

Answer: The range is \(\displaystyle 8\).

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