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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 96 · 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.Round 79.24 to one decimal place. =
  2. 2.1/3 + 1/2 =
  3. 3.How many factors does 97 have?
  4. 4.How many factors does 52 have?
  5. 5.What percent of 20 is 18?
  6. 6.The HCF of two numbers is 8 and their LCM is 240. One of the numbers is 40. What is the other number?
  7. 7.Round 47.33 to one decimal place. =
  8. 8.1.5 × 4 =
  9. 9.Which is closest to 2402 ÷ 29? (a) 160 (b) 800 (c) 40 (d) 80
  10. 10.(7 + 9) × 9 − 6 =
  11. 11.Rohan scored 28 marks out of 40 in a test. What percentage did Rohan score?
  12. 12.(18 + 19) × 4 − 30 =
  13. 13.49 + 11 × 10 − 8 =
  14. 14.Three temple bells ring every 30, 12 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  15. 15.1.7 × 3 =
  16. 16.Two tanks hold 100 litres and 350 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  17. 17.(7 + 7) × 7 − 19 =
  18. 18.Which is closest to 498 + 396 + 600? (a) 1400 (b) 1700 (c) 1600 (d) 1500
  19. 19.What percent of 25 is 17?
  20. 20.61 − 54 ÷ 9 × 7 =
  21. 21.The HCF of two numbers is 9 and their LCM is 180. One of the numbers is 45. What is the other number?
  22. 22.Which is closest to 1791 ÷ 31? (a) 120 (b) 600 (c) 60 (d) 30
  23. 23.What is the smallest number you must take away from 730 so that it divides exactly by 4?
  24. 24.4 painters can paint a school in 28 days. How many days would 16 painters take, working at the same speed?
  25. 25.What percent of 500 is 40?
  26. 26.Find the LCM of 10, 8 and 12.
  27. 27.If 8 pens cost ₹368, how much do 14 pens cost (in ₹)?
  28. 28.Three temple bells ring every 9, 18 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  29. 29.What is the smallest number you must add to 347 so that it divides exactly by 11?
  30. 30.If 4 kg of rice costs ₹108, how many kg can you buy for ₹216?
  31. 31.How many factors does 87 have?
  32. 32.What is 4/5 of ₹120?
  33. 33.How many factors does 100 have?
  34. 34.Write 7/10 as a percent.
  35. 35.Divide ₹55 between Ananya and Saanvi in the ratio 4 : 1. How much does Saanvi get (in ₹)?
  36. 36.A hall floor is 200 cm long and 75 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  37. 37.If 8 kg of rice costs ₹280, how many kg can you buy for ₹105?
  38. 38.Which is closest to 402 × 62? (Round each number first.) (a) 2400 (b) 240000 (c) 48000 (d) 24000
  39. 39.Which is closest to 1809 ÷ 19? (a) 900 (b) 45 (c) 180 (d) 90
  40. 40.Round 42681 to the nearest thousand.

Answer key

  1. 79.2
  2. 5/6
  3. 2
  4. 6
  5. 90
  6. 48
  7. 47.3
  8. 6
  9. 80
  10. 138
  11. 70
  12. 118
  13. 151
  14. 120
  15. 5.1
  16. 50
  17. 79
  18. 1500
  19. 68
  20. 19
  21. 36
  22. 60
  23. 2
  24. 7
  25. 8
  26. 120
  27. 644
  28. 72
  29. 5
  30. 8
  31. 4
  32. 96
  33. 9
  34. 70
  35. 11
  36. 24
  37. 3
  38. 24000
  39. 90
  40. 43000

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