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 #12 : Percentage

Write \(\displaystyle \frac{17}{20}\) as a percent.

Possible Answers:

\(\displaystyle 78\) %

\(\displaystyle 74\) %

\(\displaystyle 65\) %

\(\displaystyle 89\) %

\(\displaystyle 85\) %

Correct answer:

\(\displaystyle 85\) %

Explanation:

Multiply by 100, and simplify:

\(\displaystyle \frac{17}{20} \times 100 =\frac{17}{20} \times \frac{100}{1} = \frac{17}{1}\times \frac{5}{1} =\frac{ 85}{1}=85\)

The correct choice is 85%.

Example Question #13 : Percentage

Write 72% as a fraction in simplest form.

Possible Answers:

\(\displaystyle \frac{19}{25}\)

\(\displaystyle \frac{13}{20}\)

\(\displaystyle \frac{17}{20}\)

\(\displaystyle \frac{18}{25}\)

\(\displaystyle \frac{16}{25}\)

Correct answer:

\(\displaystyle \frac{18}{25}\)

Explanation:

Write as a fraction over 100, and simplify:

\(\displaystyle \frac{72}{100} = \frac{72\div 4}{100\div 4} = \frac{18}{25}\)

Example Question #1571 : Isee Middle Level (Grades 7 8) Mathematics Achievement

Gavin is shopping for a bar-b-que grill. If he has a 30% off coupon, how much will he save if the grill is currently priced at $669.00?

Possible Answers:

\(\displaystyle 468.30\)

\(\displaystyle 699.00\)

\(\displaystyle 220.70\)

\(\displaystyle 200.70\)

Correct answer:

\(\displaystyle 200.70\)

Explanation:

Multiply: \(\displaystyle 669.00 * .30= 200.70\)

Answer: Gavin will save $200.70 by using the coupon.

Example Question #15 : Percentage

Lola is shopping for a set of dishes. If the set she likes is on sale for 40% off, how much will she pay if it originally cost $310.00?

Possible Answers:

\(\displaystyle 350.00\)

\(\displaystyle 270.00\)

\(\displaystyle 124.00\)

\(\displaystyle 186.00\)

Correct answer:

\(\displaystyle 186.00\)

Explanation:

First, multiply: \(\displaystyle 310.00 * .40=124.00\)

Then, subtract that amount from the original price:

\(\displaystyle 310.00-124.00=186.00\)

Answer: Lola will pay $186.00 for the set of dishes.

Example Question #16 : Percentage

A blouse is on sale for 35% off. If it originally cost $60.00, what is the current sale price of the blouse?

Possible Answers:

\(\displaystyle 36.00\)

\(\displaystyle 30.00\)

\(\displaystyle 39.00\)

\(\displaystyle 21.00\)

Correct answer:

\(\displaystyle 39.00\)

Explanation:

First, multiply \(\displaystyle 60 * .35=21\).

Then, subtract that amount from the original price:

\(\displaystyle 60-21=39.00\)

Answer: The current sale price is $39.00.

Example Question #1572 : Isee Middle Level (Grades 7 8) Mathematics Achievement

A truck is on sale for 40% off of the original price of $12,000.00. What is the current price of the truck?

Possible Answers:

\(\displaystyle 4800.00\)

\(\displaystyle 16000.00\)

\(\displaystyle 7200.00\)

\(\displaystyle 8000.00\)

Correct answer:

\(\displaystyle 7200.00\)

Explanation:

First, multiply \(\displaystyle 12000 * .40=4800.00\).

Then, subtract that amount from the original amount:

\(\displaystyle 12000-4800=7200\)

Answer: The current price for the truck is $7,200.00

Example Question #18 : Percentage

The cost of a magazine subscription has been reduced by 15%. What is the current price, if the original price was $45.00?

Possible Answers:

\(\displaystyle 38.25\)

\(\displaystyle 38.00\)

\(\displaystyle 38.50\)

\(\displaystyle 38.75\)

Correct answer:

\(\displaystyle 38.25\)

Explanation:

First, multiply the original price by the percentage:

\(\displaystyle 45*.15=6.75\)

Then, subtract that amount from the original price:

\(\displaystyle 45.00-6.75=38.25\)

Answer: The magazine subscription currently costs $38.25.

Example Question #19 : Percentage

Barbara is purchasing a purse. If the purse orignally costs $125.00, how much will she pay for it if it is 40% off?

Possible Answers:

\(\displaystyle 65.00\)

\(\displaystyle 85.00\)

\(\displaystyle 75.00\)

\(\displaystyle 50.00\)

\(\displaystyle 70.00\)

Correct answer:

\(\displaystyle 75.00\)

Explanation:

First, multiply:\(\displaystyle 125*.40=50\)

Then, subtract that amount from the original price:

\(\displaystyle 125-50=75\)

Answer: Barbara will pay $75.00 for the purse.

Example Question #11 : How To Find Percentage

How much does a can of paint cost if it is on sale for 25% off its original price of $17.96?

Possible Answers:

\(\displaystyle 22.45\)

\(\displaystyle 15.96\)

\(\displaystyle 4.49\)

\(\displaystyle 13.47\)

Correct answer:

\(\displaystyle 13.47\)

Explanation:

First, multiply \(\displaystyle 17.96*.25=4.49\).

Then, subtract that amount from the original price:

\(\displaystyle 17.96-4.49=13.47\)

Answer: The can of paint's sale price is \(\displaystyle \$ 13.47\).

Example Question #21 : How To Find Percentage

\(\displaystyle 7q+7=70\)

What is \(\displaystyle q\)?

Possible Answers:

\(\displaystyle 10\)

\(\displaystyle 7\)

\(\displaystyle 14\)

\(\displaystyle 8\)

\(\displaystyle 9\)

Correct answer:

\(\displaystyle 9\)

Explanation:

First,subtract 7 from each side:

\(\displaystyle 7q+7-7=70-7\)

\(\displaystyle 7q=63\)

Then, divide each side by 7:

\(\displaystyle \frac{7q}{7}=\frac{63}{}7\)

\(\displaystyle q=9\)

 

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