SSAT Middle Level Math : Numbers and Operations

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

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Example Questions

Example Question #1341 : Numbers And Operations

What is 30% of 150?

Possible Answers:

Correct answer:

Explanation:

One way to go about solving this problem is to convert the percent into a decimal and multiply your whole number by that in order to get your answer. When converting a percent into a decimal, move the decimal point two spaces to the left:

30% = 0.30

Then, multiply this number times 150:

Your answer is .

Example Question #1342 : Numbers And Operations

If  is  of , what is  of ?

Possible Answers:

Correct answer:

Explanation:

We can solve for  with the algebraic equation:

We can then calculate  of :

Example Question #5 : Percentage

What is  of ?

Possible Answers:

Correct answer:

Explanation:

We can convert  to  or . We can then calculate .

Example Question #4 : How To Work With Percentages

Susan has a coupon for 10% off any one item at her favorite department store. There is also a storewide sale of 50% off all purchases. 

If Susan wants to by a shirt originally priced at $42, how much will she pay?

Possible Answers:

$16.50

$37.80

$21.00

$20.00

$18.90

Correct answer:

$18.90

Explanation:

The storewide sale discounts the shirt by 50%:

Susan also has the 10% off coupon, so she's really paying 90% of the cost of the shirt:

 

Example Question #4 : How To Find The Part From The Whole With Percentage

What is  of  ?

Possible Answers:

Correct answer:

Explanation:

 of   can be rewritten as 

Example Question #5 : Percentage

What is  of  ?

Possible Answers:

Correct answer:

Explanation:

  of  is equal to:

Cross-cancel:

Example Question #2 : Percentage

What is 8,000% of 9,000?

Possible Answers:

Correct answer:

Explanation:

Taking 8,000%, as a decimal, is equivalent to multiplying it by , so 8,000% of 9,000 is equivalent to 

.

Example Question #1341 : Numbers And Operations

What is 220% of 0.00022?

Possible Answers:

Correct answer:

Explanation:

220% of a number is 2.2 multiplied by that number, so 220% of 0.00022 is equal to

.

 

Example Question #1344 : Numbers And Operations

What is 3.33% percent of 3.33?

Possible Answers:

Correct answer:

Explanation:

Taking 3.33% percent of a number is the same as multiplying it by 0.0333, so 3.33% percent of 3.33 is equal to

.

Example Question #1345 : Numbers And Operations

Pie_graph

Refer to the above graph. If there were  registered voters in Smith County in , how many voters were not registered as Republicans  (nearest whole number)?

Possible Answers:

Correct answer:

Explanation:

 of the voters were registered as Republicans, so the rest -  - were not. Therefore, we want to calculate  of , or, equivalently, 

which, to the nearest whole number, rounds to  voters

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