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Estimation Sequence Flashcards

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

Read the first 7 Estimation Sequence flashcards as text

  1. A theater holds 38 rows of 52 seats. Which front-end estimate is most reasonable for the total number of seats?

    Answer: 2,000

    Rounding to 40 × 50 gives 2,000, the closest sensible estimate.

  2. Maria estimates 297 + 412 + 188 by rounding each to the nearest hundred. What is her estimate?

    Answer: 900

    300 + 400 + 200 equals 900.

  3. Which situation calls for an OVERestimate rather than a close estimate?

    Answer: Making sure you have enough money to buy several items

    Overestimating ensures you bring enough money to cover the purchase.

  4. Estimate the quotient 6,238 ÷ 78 using compatible numbers.

    Answer: 80

    Using 6,400 ÷ 80 gives a compatible estimate of 80.

  5. A student rounds 4.86 to the nearest whole number, then to the nearest tenth. Which pair is correct?

    Answer: 5 and 4.9

    4.86 rounds to 5 (whole) and 4.9 (tenth).

  6. Which estimate for 19 × 21 shows clustering around a single number?

    Answer: 20 × 20 = 400

    Both factors cluster near 20, so 20 × 20 = 400 estimates the product.

  7. Estimating 503 − 198 by rounding to the nearest hundred gives which result?

    Answer: 300

    500 − 200 equals 300.