Rounding & Estimating Quiz

Question 1

Round 47 to the nearest 10.

Accepted Answer

50

Answer

40

Answer

45

Answer

55

Question 2

Round 83 to the nearest 10.

Accepted Answer

80

Answer

85

Answer

90

Answer

100

Question 3

Round 356 to the nearest 100.

Accepted Answer

400

Answer

300

Answer

350

Answer

360

Question 4

Round 1,249 to the nearest 1,000.

Accepted Answer

1,000

Answer

1,200

Answer

1,250

Answer

2,000

Question 5

Which is the best estimate for 49 + 52?

Accepted Answer

100

Answer

50

Answer

80

Answer

110

Question 6

Round 4.7 to the nearest whole number.

Accepted Answer

5

Answer

4

Answer

4.5

Answer

5.7

Question 7

Round 650 to the nearest 100.

Accepted Answer

700

Answer

600

Answer

650

Answer

1,000

Question 8

A shop sells 298 items one day and 312 the next. Estimate the total by rounding to the nearest 100.

Accepted Answer

600

Answer

500

Answer

700

Answer

800

Question 9

Round 9,876 to the nearest 1,000.

Accepted Answer

10,000

Answer

9,000

Answer

9,800

Answer

9,900

Question 10

Estimate 61 × 4 by rounding 61 to the nearest 10.

Accepted Answer

240

Answer

200

Answer

260

Answer

280

Question 11

Round 3.14 to 1 decimal place.

Accepted Answer

3.1

Answer

3

Answer

3.2

Answer

3.14

Question 12

A cinema has 486 seats. Round to the nearest 100 to estimate how many people it can hold.

Accepted Answer

500

Answer

400

Answer

480

Answer

490

Question 13

Which calculation gives the best estimate of 397 ÷ 4?

Accepted Answer

400 ÷ 4 = 100

Answer

390 ÷ 4 = 97.5

Answer

400 ÷ 5 = 80

Answer

300 ÷ 4 = 75

Question 14

Round 7.85 to 1 decimal place.

Accepted Answer

7.9

Answer

7.8

Answer

8

Answer

7.85

Question 15

A school has 1,243 pupils. Round this to the nearest 1,000.

Accepted Answer

1,000

Answer

1,200

Answer

1,240

Answer

2,000

Question 16

Estimate the cost of 5 books at £6.95 each by rounding the price to the nearest pound.

Accepted Answer

£35

Answer

£25

Answer

£30

Answer

£40

Question 17

Round 55 to the nearest 10.

Accepted Answer

60

Answer

50

Answer

55

Answer

65

Question 18

Which whole number is 8.3 closest to?

Accepted Answer

8

Answer

7

Answer

8.5

Answer

9

Question 19

Round 12,500 to the nearest 10,000.

Accepted Answer

10,000

Answer

12,000

Answer

13,000

Answer

20,000

Question 20

A runner completes 5 laps of a 382 m track. Estimate the total distance by rounding 382 to the nearest 100.

Accepted Answer

2,000 m

Answer

1,500 m

Answer

1,800 m

Answer

2,500 m