Approximation and Estimation Worksheet

Quantitative aptitude lesson 6: Approximation and estimation · Set 466 · 40 questions

The method (Round, then calculate): Round each number to the nearest ten, hundred or whole number. Do the easy sum with the rounded numbers. Pick the option nearest to it. To round a number, look at the digit after the place you keep: 5 or more goes up, less than 5 stays.

1. 1.Which is closest to 496 + 97 + 695? (a) 1400 (b) 1300 (c) 1200 (d) 1500
2. 2.Round 39633 to the nearest thousand.
3. 3.Round 56.43 to one decimal place. =
4. 4.Round 54643 to the nearest thousand.
5. 5.Which is closest to 596 × 21? (Round each number first.) (a) 24000 (b) 12000 (c) 1200 (d) 120000
6. 6.Which is closest to 701 × 62? (Round each number first.) (a) 84000 (b) 420000 (c) 42000 (d) 4200
7. 7.Round 10608 to the nearest ten.
8. 8.Round 96.29 to one decimal place. =
9. 9.Round 36012 to the nearest ten.
10. 10.Round 22.58 to one decimal place. =
11. 11.Round 25906 to the nearest ten.
12. 12.Which is closest to 602 × 68? (Round each number first.) (a) 420000 (b) 84000 (c) 4200 (d) 42000
13. 13.Which is closest to 395 + 800 + 499? (a) 1800 (b) 1600 (c) 1900 (d) 1700
14. 14.Which is closest to 1498 ÷ 29? (a) 500 (b) 100 (c) 25 (d) 50
15. 15.Which is closest to 1404 ÷ 21? (a) 700 (b) 35 (c) 140 (d) 70
16. 16.Which is closest to 204 + 203 + 504? (a) 1100 (b) 800 (c) 900 (d) 1000
17. 17.Which is closest to 495 + 404 + 897? (a) 2000 (b) 1800 (c) 1900 (d) 1700
18. 18.Round 28927 to the nearest ten.
19. 19.Which is closest to 100 + 903 + 202? (a) 1200 (b) 1400 (c) 1300 (d) 1100
20. 20.Round 85.22 to one decimal place. =
21. 21.Which is closest to 896 ÷ 29? (a) 60 (b) 15 (c) 30 (d) 300
22. 22.Which is closest to 604 + 495 + 305? (a) 1600 (b) 1500 (c) 1400 (d) 1300
23. 23.Round 91805 to the nearest hundred.
24. 24.Round 13.63 to one decimal place. =
25. 25.Which is closest to 397 + 99 + 97? (a) 600 (b) 700 (c) 500 (d) 800
26. 26.Which is closest to 796 × 32? (Round each number first.) (a) 24000 (b) 2400 (c) 240000 (d) 48000
27. 27.Which is closest to 602 × 21? (Round each number first.) (a) 24000 (b) 12000 (c) 120000 (d) 1200
28. 28.Which is closest to 594 ÷ 19? (a) 15 (b) 300 (c) 60 (d) 30
29. 29.Which is closest to 700 × 79? (Round each number first.) (a) 112000 (b) 56000 (c) 5600 (d) 560000
30. 30.Round 57906 to the nearest hundred.
31. 31.Which is closest to 404 × 71? (Round each number first.) (a) 28000 (b) 2800 (c) 56000 (d) 280000
32. 32.Which is closest to 503 + 300 + 698? (a) 1400 (b) 1600 (c) 1700 (d) 1500
33. 33.Round 87923 to the nearest thousand.
34. 34.Which is closest to 104 + 801 + 704? (a) 1700 (b) 1800 (c) 1500 (d) 1600
35. 35.Which is closest to 1201 ÷ 29? (a) 400 (b) 20 (c) 80 (d) 40
36. 36.Which is closest to 501 × 40? (Round each number first.) (a) 2000 (b) 40000 (c) 20000 (d) 200000
37. 37.Round 18552 to the nearest thousand.
38. 38.Round 74541 to the nearest thousand.
39. 39.Which is closest to 601 × 69? (Round each number first.) (a) 84000 (b) 420000 (c) 42000 (d) 4200
40. 40.Round 80966 to the nearest hundred.

Free quantitative aptitude lessons, practice and worksheets at talentjr.in/quantitative-aptitude