# HSPT Math : Concepts

## Example Questions

### Example Question #6 : Decimals

Explanation:

Multiply normally and remember that the decimal point is four places from the right.

### Example Question #7 : Decimals

Express   as a decimal.

Explanation:

Divide 8 by 15:

The 3 repeats, so the correct choice is .

### Example Question #8 : Decimals

Give the decimal equivalent of .

Explanation:

Divide 11 by 18:

The 1 repeats infinitely, so this can be rewritten as .

### Example Question #9 : Decimals

Give the decimal equivalent of .

Explanation:

Divide 5 by 27:

The group "185" repeats infinitely, so this can be written as .

### Example Question #10 : Decimals

Give the decimal equivalent of .

Explanation:

Divide 7 by 36:

The 4 repeats infinitely, so this can be rewritten as .

### Example Question #1 : How To Find Percentage

A watch originally cost $55.00. If it is on sale for 20% off, what is the sale price of the watch? Possible Answers: Correct answer: Explanation: To solve: First, find what is 20% of 55 by multiplying: Then, subtract 20% (11) from the original price: The final sale price will be$44.00.

### Example Question #2 : How To Find Percentage

Which is largest?

a. 30% of 150

b. 20% of 300

c. 40% of 60

d. 10% of 400

Explanation:

To solve:

First find the corresponding percentage of each multiple choice answer,

a)

b)

c)

d)

Then, compare the amounts and select which amount is the largest:

b) 60

### Example Question #3 : How To Find Percentage

How do you write  as a percent?

50%

20%

5%

15%

25%

20%

Explanation:

is equal to , which is 20%.

### Example Question #4 : How To Find Percentage

Andrew has completed 80% of the race. If the race is 5000 meters, how far along is Andrew?

Explanation:

Multiply the length of the race by the percentage accomplished by Andrew:

Answer: Andrew has completed 4000 meters of the race.

Which is less?

a. 60% of 10

b. 20% of 40

c. 30% of 20

d. 10% of 50