PSAT Practice Math Test

Front

Which of the following expressions is equivalent to ( a + b) ( a - b)? a^{2 -} b², ( a+b)², ( a-b)², ab( a-b), ab( a+b)

Back

a^{2 -} b²

Front

A combination lock uses a 3-digit code. Each digit can be any one of the ten available integers 0-9. How many different combinations are possible?

Back

1000

Front

A tire on a car rotates 500 RPM (revolutions per minute) when the car is traveling at 50 km/hr (Kilometers per hour). What is the circumference of the tire in meters?

Back

10/6

Front

Chan receives a bonus from his job. He pays 30% in taxes, gives 30% to charity, and uses another 25% to pay off an old debt. He has $600 remaining from his bonus. What was the total amount of Chan's bonus?

Back

$4,000

Front

Dorothy is half her sister's age. She will be three-fourths of her sister's age in 20 years. How many years old is she?

Back

10

Front

Approximately how much paper is recycled every month by the Charleston Recycling Company, which collects 50,000 tons of recyclable material each month?

Back

20,000 Tons

Front

What is the second most common material that is recycled by the Charleston Recycling Company?

Back

Glass

Front

Arrange the following numbers from least to greatest: 2³, 4², 6⁰, 9, 10¹.

Back

6⁰, 2³, 9, 10¹, 4²