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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 189 · 40 questions
TalentJR

The method (Spot the type): Read the question and name the topic: HCF/LCM, fraction, ratio, percent … Use that lesson’s method and write each step. Check: is the answer sensible in size and units?

NameDateTime takenScore ___ / 40
  1. 1.Which is closest to 203 + 805 + 698? (a) 1600 (b) 1900 (c) 1800 (d) 1700
  2. 2.If 5 bottles of juice cost ₹75, how much do 4 bottles of juice cost (in ₹)?
  3. 3.How many factors does 22 have?
  4. 4.What is 80% of 285?
  5. 5.Round 7767 to the nearest ten.
  6. 6.Round 51023 to the nearest ten.
  7. 7.What is 1/6 of 174 litres?
  8. 8.67 − 20 ÷ 4 × 8 =
  9. 9.2/11 + 6/9 =
  10. 10.11 : 5 = 22 : ?
  11. 11.What is the smallest number you must take away from 444 so that it divides exactly by 9?
  12. 12.Find the LCM of 14, 7 and 6.
  13. 13.What is the smallest number you must add to 158 so that it divides exactly by 9?
  14. 14.What is the smallest number you must take away from 835 so that it divides exactly by 12?
  15. 15.How many factors does 91 have?
  16. 16.36 + 12 × 9 − 24 =
  17. 17.1/7 + 1/5 =
  18. 18.Round 49011 to the nearest ten.
  19. 19.Find the third proportional to 2 and 10 (that is, 2 : 10 = 10 : ?).
  20. 20.4/12 × 2/3 =
  21. 21.Which is closest to 498 + 798 + 896? (a) 2300 (b) 2400 (c) 2200 (d) 2100
  22. 22.What percent of 80 is 4?
  23. 23.Round 53034 to the nearest hundred.
  24. 24.Three temple bells ring every 30, 15 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  25. 25.Two tanks hold 135 litres and 360 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  26. 26.A hall floor is 140 cm long and 100 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  27. 27.What is the smallest number you must take away from 419 so that it divides exactly by 6?
  28. 28.5/7 − 1/8 =
  29. 29.Two tanks hold 210 litres and 270 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  30. 30.If 3 kites cost ₹99, how much do 15 kites cost (in ₹)?
  31. 31.1.99 + 3.2 =
  32. 32.Which is closest to 395 + 104 + 505? (a) 900 (b) 1000 (c) 1200 (d) 1100
  33. 33.How many factors does 80 have?
  34. 34.Round 61223 to the nearest hundred.
  35. 35.3 : 13 = 27 : ?
  36. 36.20 − 8 ÷ 2 × 4 =
  37. 37.Three temple bells ring every 8, 20 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  38. 38.What percent of 200 is 10?
  39. 39.2/3 of 24 + 2 × 4 =
  40. 40.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 10, 4 or 5.

Answer key

  1. 1700
  2. 60
  3. 4
  4. 228
  5. 7770
  6. 51020
  7. 29
  8. 27
  9. 28/33
  10. 10
  11. 3
  12. 42
  13. 4
  14. 7
  15. 4
  16. 120
  17. 12/35
  18. 49010
  19. 50
  20. 2/9
  21. 2200
  22. 5
  23. 53000
  24. 120
  25. 45
  26. 35
  27. 5
  28. 33/56
  29. 30
  30. 495
  31. 5.19
  32. 1000
  33. 10
  34. 61200
  35. 117
  36. 4
  37. 120
  38. 5
  39. 24
  40. 21

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