CBEST Math: Estimation and Measurement 5 — Questions and Answers
Question 1: A pitcher holds 2 quarts of lemonade. How many 8-ounce glasses can be filled from it?
- 4 glasses
- 6 glasses
- 8 glasses (Correct answer)
- 10 glasses
Correct answer: 8 glasses
2 quarts = 64 fluid ounces; 64 ÷ 8 = 8 glasses.
Question 2: An object has a mass of 850 grams. Approximately how many pounds does it weigh? (1 kg ≈ 2.2 lbs)
- About 1.5 lbs
- About 1.9 lbs (Correct answer)
- About 2.2 lbs
- About 2.5 lbs
Correct answer: About 1.9 lbs
850 g = 0.85 kg × 2.2 lbs/kg ≈ 1.87 lbs, approximately 1.9 lbs.
Question 3: A 6-pack of water bottles contains 16.9 fl oz each. Which best estimates the total fluid ounces?
- About 90 fl oz
- About 100 fl oz (Correct answer)
- About 110 fl oz
- About 120 fl oz
Correct answer: About 100 fl oz
17 × 6 = 102 fl oz, which is closest to about 100 fl oz.
Question 4: A wall is 8 feet tall and 15 feet wide. How many square yards of paint coverage is needed?
- About 9 sq yd
- About 13 sq yd (Correct answer)
- About 15 sq yd
- About 18 sq yd
Correct answer: About 13 sq yd
8 × 15 = 120 sq ft ÷ 9 sq ft/sq yd ≈ 13.3 sq yd.
Question 5: A thermometer reads 68°F. What is this temperature in Celsius? (C = (F − 32) × 5/9)
- 10°C
- 15°C
- 20°C (Correct answer)
- 25°C
Correct answer: 20°C
(68 − 32) × 5/9 = 36 × 5/9 = 20°C.
Question 6: A box of cereal weighs 18 oz. Approximately how many grams is this? (1 oz ≈ 28 g)
- About 400 g
- About 500 g (Correct answer)
- About 504 g
- About 600 g
Correct answer: About 500 g
18 × 28 = 504 g, which is approximately 500 grams.
Question 7: Which best estimates the number of seconds in 2.5 hours?
- About 7,200
- About 9,000 (Correct answer)
- About 10,800
- About 14,400
Correct answer: About 9,000
2.5 hours × 60 min/hr × 60 sec/min = 9,000 seconds.
CBEST Math: Estimation and Measurement 5
A pitcher holds 2 quarts of lemonade.
How many 8-ounce glasses can be filled from it?