CBEST Math: Estimation and Measurement 3

Question 1

A swimming pool holds approximately 18,500 gallons. Which is the best estimate of its capacity in thousands of gallons?

Accepted Answer

About 18,000 gallons

Answer

18,500 rounds to 18,000 when rounding to the nearest thousand.

Question 2

A runner completes a 10-kilometer race in 52 minutes. What is the approximate pace per kilometer?

Accepted Answer

About 5 minutes

Answer

52 ÷ 10 = 5.2 minutes per kilometer, which is approximately 5 minutes.

Question 3

Which temperature is closest to normal human body temperature?

Accepted Answer

37°C

Answer

Normal body temperature is 98.6°F, which equals approximately 37°C.

Question 4

A bag of potatoes weighs 5 pounds 8 ounces. How many total ounces does it weigh?

Accepted Answer

88 ounces

Answer

5 pounds × 16 oz/lb = 80 oz, plus 8 oz = 88 oz total.

Question 5

A classroom floor measures 24 feet by 30 feet. If tiles are 1 foot square, approximately how many tiles are needed?

Accepted Answer

About 720

Answer

24 × 30 = 720 square feet, so exactly 720 tiles are needed.

CBEST - California Basic Educational Skills Test Practice Test