Rounding & Estimating Quiz

1. Round 47 to the nearest 10.

1. 40
2. 45
3. 50
4. 55

2. Round 83 to the nearest 10.

1. 100
2. 80
3. 85
4. 90

3. Round 356 to the nearest 100.

1. 300
2. 350
3. 360
4. 400

4. Round 1,249 to the nearest 1,000.

1. 1,000
2. 1,200
3. 1,250
4. 2,000

5. Which is the best estimate for 49 + 52?

1. 100
2. 110
3. 50
4. 80

6. Round 4.7 to the nearest whole number.

1. 4
2. 4.5
3. 5
4. 5.7

7. Round 650 to the nearest 100.

1. 1,000
2. 600
3. 650
4. 700

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

1. 500
2. 600
3. 700
4. 800

9. Round 9,876 to the nearest 1,000.

1. 10,000
2. 9,000
3. 9,800
4. 9,900

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

1. 200
2. 240
3. 260
4. 280

11. Round 3.14 to 1 decimal place.

1. 3
2. 3.1
3. 3.14
4. 3.2

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

1. 400
2. 480
3. 490
4. 500

13. Which calculation gives the best estimate of 397 ÷ 4?

1. 300 ÷ 4 = 75
2. 390 ÷ 4 = 97.5
3. 400 ÷ 4 = 100
4. 400 ÷ 5 = 80

14. Round 7.85 to 1 decimal place.

1. 7.8
2. 7.85
3. 7.9
4. 8

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

1. 1,000
2. 1,200
3. 1,240
4. 2,000

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

1. £25
2. £30
3. £35
4. £40

17. Round 55 to the nearest 10.

1. 50
2. 55
3. 60
4. 65

18. Which whole number is 8.3 closest to?

1. 7
2. 8
3. 8.5
4. 9

19. Round 12,500 to the nearest 10,000.

1. 10,000
2. 12,000
3. 13,000
4. 20,000

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

1. 1,500 m
2. 1,800 m
3. 2,000 m
4. 2,500 m