PARCC Estimation Sequence 2

Question 1

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

Accepted Answer

2,000

Answer

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

Question 2

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

Accepted Answer

900

Answer

300 + 400 + 200 equals 900.

Question 3

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

Accepted Answer

Making sure you have enough money to buy several items

Answer

Overestimating ensures you bring enough money to cover the purchase.

Question 4

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

Accepted Answer

80

Answer

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

Question 5

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

Accepted Answer

5 and 4.9

Answer

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

PARCC Practice Test