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Math: Estimation and Measurement Flashcards

7 cards from real CBEST practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Math: Estimation and Measurement flashcards as text

  1. A pitcher holds 2 quarts of lemonade. How many 8-ounce glasses can be filled from it?

    Answer: 8 glasses

    2 quarts = 64 fluid ounces; 64 ÷ 8 = 8 glasses.

  2. An object has a mass of 850 grams. Approximately how many pounds does it weigh? (1 kg ≈ 2.2 lbs)

    Answer: About 1.9 lbs

    850 g = 0.85 kg × 2.2 lbs/kg ≈ 1.87 lbs, approximately 1.9 lbs.

  3. A 6-pack of water bottles contains 16.9 fl oz each. Which best estimates the total fluid ounces?

    Answer: About 100 fl oz

    17 × 6 = 102 fl oz, which is closest to about 100 fl oz.

  4. A wall is 8 feet tall and 15 feet wide. How many square yards of paint coverage is needed?

    Answer: About 13 sq yd

    8 × 15 = 120 sq ft ÷ 9 sq ft/sq yd ≈ 13.3 sq yd.

  5. A thermometer reads 68°F. What is this temperature in Celsius? (C = (F − 32) × 5/9)

    Answer: 20°C

    (68 − 32) × 5/9 = 36 × 5/9 = 20°C.

  6. A box of cereal weighs 18 oz. Approximately how many grams is this? (1 oz ≈ 28 g)

    Answer: About 500 g

    18 × 28 = 504 g, which is approximately 500 grams.

  7. Which best estimates the number of seconds in 2.5 hours?

    Answer: About 9,000

    2.5 hours × 60 min/hr × 60 sec/min = 9,000 seconds.