Approximation and Estimation Worksheet

Quantitative aptitude lesson 6: Approximation and estimation · Set 709 · 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 1195 ÷ 29? (a) 80 (b) 40 (c) 20 (d) 400
2. 2.Which is closest to 1195 ÷ 31? (a) 80 (b) 20 (c) 40 (d) 400
3. 3.Which is closest to 404 × 28? (Round each number first.) (a) 24000 (b) 120000 (c) 1200 (d) 12000
4. 4.Which is closest to 805 + 202 + 200? (a) 1300 (b) 1400 (c) 1200 (d) 1100
5. 5.Which is closest to 104 + 597 + 598? (a) 1200 (b) 1500 (c) 1400 (d) 1300
6. 6.Round 13.28 to one decimal place. =
7. 7.Which is closest to 903 × 42? (Round each number first.) (a) 72000 (b) 360000 (c) 36000 (d) 3600
8. 8.Which is closest to 4004 ÷ 49? (a) 80 (b) 160 (c) 40 (d) 800
9. 9.Which is closest to 2995 ÷ 51? (a) 30 (b) 600 (c) 60 (d) 120
10. 10.Round 98.31 to one decimal place. =
11. 11.Which is closest to 396 × 58? (Round each number first.) (a) 2400 (b) 240000 (c) 24000 (d) 48000
12. 12.Which is closest to 502 × 79? (Round each number first.) (a) 4000 (b) 40000 (c) 400000 (d) 80000
13. 13.Which is closest to 501 × 69? (Round each number first.) (a) 3500 (b) 70000 (c) 350000 (d) 35000
14. 14.Round 26340 to the nearest hundred.
15. 15.Which is closest to 698 × 52? (Round each number first.) (a) 3500 (b) 35000 (c) 70000 (d) 350000
16. 16.Which is closest to 1606 ÷ 41? (a) 80 (b) 20 (c) 40 (d) 400
17. 17.Which is closest to 1195 ÷ 21? (a) 120 (b) 600 (c) 30 (d) 60
18. 18.Which is closest to 202 × 88? (Round each number first.) (a) 1800 (b) 18000 (c) 180000 (d) 36000
19. 19.Which is closest to 1191 ÷ 39? (a) 300 (b) 60 (c) 15 (d) 30
20. 20.Which is closest to 196 × 32? (Round each number first.) (a) 60000 (b) 6000 (c) 600 (d) 12000
21. 21.Round 3818 to the nearest thousand.
22. 22.Round 49.43 to one decimal place. =
23. 23.Round 92.47 to one decimal place. =
24. 24.Which is closest to 702 + 196 + 902? (a) 1700 (b) 1800 (c) 1900 (d) 2000
25. 25.Round 1307 to the nearest hundred.
26. 26.Which is closest to 499 × 90? (Round each number first.) (a) 45000 (b) 90000 (c) 450000 (d) 4500
27. 27.Which is closest to 699 × 68? (Round each number first.) (a) 490000 (b) 49000 (c) 98000 (d) 4900
28. 28.Which is closest to 297 × 31? (Round each number first.) (a) 18000 (b) 900 (c) 9000 (d) 90000
29. 29.Which is closest to 303 × 62? (Round each number first.) (a) 18000 (b) 36000 (c) 1800 (d) 180000
30. 30.Which is closest to 700 × 58? (Round each number first.) (a) 4200 (b) 84000 (c) 42000 (d) 420000
31. 31.Which is closest to 403 × 91? (Round each number first.) (a) 3600 (b) 72000 (c) 36000 (d) 360000
32. 32.Round 59769 to the nearest hundred.
33. 33.Which is closest to 904 × 31? (Round each number first.) (a) 2700 (b) 54000 (c) 270000 (d) 27000
34. 34.Round 87.59 to one decimal place. =
35. 35.Which is closest to 899 + 702 + 898? (a) 2400 (b) 2500 (c) 2700 (d) 2600
36. 36.Which is closest to 400 × 31? (Round each number first.) (a) 24000 (b) 12000 (c) 120000 (d) 1200
37. 37.Round 18.62 to one decimal place. =
38. 38.Which is closest to 701 × 30? (Round each number first.) (a) 210000 (b) 21000 (c) 42000 (d) 2100
39. 39.Round 15696 to the nearest ten.
40. 40.Round 46.87 to one decimal place. =

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