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 #2 : How To Find Range

Find the range in this set of numbers:

\(\displaystyle 6776, 6677,6767, 6676, 6766, 6777,6677\)

Possible Answers:

\(\displaystyle 100\)

\(\displaystyle 101\)

\(\displaystyle 99\)

\(\displaystyle 111\)

Correct answer:

\(\displaystyle 101\)

Explanation:

First, order the numbers from least to greatest:

\(\displaystyle 6676, 6677, 6677, 6766, 6767, 6776, 6777\)

Then, find the difference between the largest and smallest number:

\(\displaystyle 6777-6676=101\)

Answer: The range is 101.

Example Question #321 : Isee Middle Level (Grades 7 8) Mathematics Achievement

Find the range in this set of numbers:

5855, 5588, 5585, 5858, 5885, 5558, 5885

Possible Answers:

\(\displaystyle 5885\)

\(\displaystyle 327\)

\(\displaystyle 5855\)

\(\displaystyle 325\)

Correct answer:

\(\displaystyle 327\)

Explanation:

First, order the numbers from least to greatest:

\(\displaystyle 5558, 5585, 5588, 5855, 5858, 5885, 5885\)

Then, find the difference between the largest and smallest number:

\(\displaystyle 5885-5558=327\)

Answer: The range is 327.

Example Question #322 : Isee Middle Level (Grades 7 8) Mathematics Achievement

Find the range in this set of numbers:

212, 112, 121, 221, 122

Possible Answers:

\(\displaystyle 111\)

\(\displaystyle 110\)

\(\displaystyle 109\)

\(\displaystyle 112\)

Correct answer:

\(\displaystyle 109\)

Explanation:

First, order the numbers from least to greatest:

\(\displaystyle 112, 121, 122, 212, 221\)

Then, subtract the smallest number from the largest:

\(\displaystyle 221-112=109\)

Answer: The range is 109.

Example Question #13 : Data Analysis

Find the difference between the mode and the range in this set of numbers:

9881, 9981, 9818, 9981, 9891, 9918, 9989, 9889, 9198

Possible Answers:

\(\displaystyle 9190\)

\(\displaystyle 9981\)

\(\displaystyle 9981\)

\(\displaystyle 9100\)

Correct answer:

\(\displaystyle 9190\)

Explanation:

First, order the numbers from least to greatest:

\(\displaystyle 9198, 9818, 9881, 9889, 9891, 9918, 9981, 9981, 9989\)

Then, identify the mode (the most recurring number in the set): \(\displaystyle 9981\)

Then, find the range (difference of the largest and smallest number):

\(\displaystyle 9989-9198=791\)

Finally, find the difference between the mode and the range in this set:

\(\displaystyle 9981-791=9190\)

Example Question #323 : Isee Middle Level (Grades 7 8) Mathematics Achievement

Find the range in this set of numbers:

\(\displaystyle 556, 565,655, 656, 556, 665\)

Possible Answers:

\(\displaystyle 111\)

\(\displaystyle 100\)

\(\displaystyle 190\)

\(\displaystyle 109\)

Correct answer:

\(\displaystyle 109\)

Explanation:

First order the numbers from least to greatest:

\(\displaystyle 556, 556, 565, 655, 656, 665\)

Then, subtract the smallest number from the largest number:

\(\displaystyle 665-556=109\)

Answer: The range is 109.

Example Question #324 : Isee Middle Level (Grades 7 8) Mathematics Achievement

Find the range in this set of numbers:

787, 778, 878, 877

Possible Answers:

\(\displaystyle 101\)

\(\displaystyle 110\)

\(\displaystyle 111\)

\(\displaystyle 100\)

\(\displaystyle 91\)

 

 

Correct answer:

\(\displaystyle 100\)

Explanation:

First, order the numbers from least to greatest:

\(\displaystyle 778,787,877,878\)

Then, subtract the smallest number from the largest number:

\(\displaystyle 878-778=100\)

Answer : The range is 100.

Example Question #325 : Isee Middle Level (Grades 7 8) Mathematics Achievement

Find the range of this set of numbers:

\(\displaystyle 524, 542, 425, 452, 545, 455, 425, 522\)

Possible Answers:

\(\displaystyle 110\)

\(\displaystyle 120\)

\(\displaystyle 130\)

\(\displaystyle 100\)

Correct answer:

\(\displaystyle 120\)

Explanation:

The range is the difference between the smallest and largest numbers.

First, order the numbers from least to greatest:

\(\displaystyle 425,425, 452, 455,522, 524, 542, 545\)

Then subtract the smallest from the largest number:

\(\displaystyle 545-425=120\)

 

Example Question #326 : Isee Middle Level (Grades 7 8) Mathematics Achievement

Find the range of this set of numbers:

\(\displaystyle 879, 789, 978, 788, 789, 989, 897\)

Possible Answers:

\(\displaystyle 200\)

\(\displaystyle 199\)

\(\displaystyle 101\)

\(\displaystyle 201\)

Correct answer:

\(\displaystyle 201\)

Explanation:

The range is the difference between the smallest and largest number.

First, order the numbers from least to greatest:

\(\displaystyle 788, 789, 789, 879, 897, 978, 989\)

Then, subtract the smallest from the largest number:

\(\displaystyle 989-788=201\)

 

Example Question #327 : Isee Middle Level (Grades 7 8) Mathematics Achievement

Find the range of this set of numbers:

\(\displaystyle 368, 638, 386, 836, 683\)

Possible Answers:

\(\displaystyle 468\)

\(\displaystyle 836\)

\(\displaystyle 638\)

\(\displaystyle 683\)

Correct answer:

\(\displaystyle 468\)

Explanation:

The range of a data set is the difference between the smallest and largest numbers.

First, order the numbers from least to greatest:

\(\displaystyle 368, 386, 638, 683, 836\)

Then, subtract the smallest number from the largest:

\(\displaystyle 836-368=468\)

Example Question #21 : Data Analysis

Find the range of this set of numbers:

\(\displaystyle 72, 23, 37, 32, 27, 73, 77\)

Possible Answers:

\(\displaystyle 77\)

\(\displaystyle 37\)

\(\displaystyle 23\)

\(\displaystyle 54\)

Correct answer:

\(\displaystyle 54\)

Explanation:

The range of a data set is the difference between the smallest and largest numbers.

First, order the numbers from least to greatest:

\(\displaystyle 23, 27, 32, 37, 72, 73, 77\)

Then, subtract the smallest number from the largest:

\(\displaystyle 77-23=54\)

 

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