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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 129 · 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. 1.44 ÷ 4 × 3 + 4 =
  2. 2.If 11 pens cost ₹264, how much do 8 pens cost (in ₹)?
  3. 3.Which of these numbers divides exactly by 6? (a) 5866 (b) 5322 (c) 2755 (d) 6853
  4. 4.A hall floor is 175 cm long and 125 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  5. 5.Which is closest to 901 × 50? (Round each number first.) (a) 90000 (b) 4500 (c) 450000 (d) 45000
  6. 6.43 − 72 ÷ 9 × 3 =
  7. 7.What is the smallest number you must add to 136 so that it divides exactly by 3?
  8. 8.Which of these numbers divides exactly by 9? (a) 2217 (b) 2588 (c) 8422 (d) 7983
  9. 9.Which is closest to 1200 ÷ 19? (a) 60 (b) 600 (c) 30 (d) 120
  10. 10.What is 1/2 of 56 students?
  11. 11.Write 1/2 as a percent.
  12. 12.What is 150% of 566?
  13. 13.3 × (10 − 4) + 60 ÷ 6 =
  14. 14.12 painters can paint a school in 14 days. How many days would 24 painters take, working at the same speed?
  15. 15.1/3 of 15 + 8 × 3 =
  16. 16.Find the HCF of 63 and 56.
  17. 17.Three temple bells ring every 9, 4 and 18 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  18. 18.Find the HCF of 14 and 12.
  19. 19.Round 77.83 to one decimal place. =
  20. 20.Rahul scored 12 marks out of 40 in a test. What percentage did Rahul score?
  21. 21.Which of these numbers divides exactly by 8? (a) 1690 (b) 6981 (c) 4895 (d) 7664
  22. 22.Three temple bells ring every 4, 5 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  23. 23.1/2 × 1/3 =
  24. 24.Three temple bells ring every 10, 6 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  25. 25.How many factors does 78 have?
  26. 26.Find the HCF of 30 and 48.
  27. 27.What is the smallest number you must take away from 798 so that it divides exactly by 12?
  28. 28.4 × (13 − 7) + 90 ÷ 9 =
  29. 29.The ratio of boys to girls in a class is 8 : 1. There are 80 boys. How many girls are there?
  30. 30.1/2 + 2/3 =
  31. 31.Pooja takes 30 seconds and Diya takes 72 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
  32. 32.The HCF of two numbers is 3 and their LCM is 135. One of the numbers is 15. What is the other number?
  33. 33.Round 86.82 to one decimal place. =
  34. 34.What is 15% of 40?
  35. 35.Three temple bells ring every 9, 6 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  36. 36.Rahul takes 54 seconds and Dev takes 45 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
  37. 37.4/12 × 4/7 =
  38. 38.Which is closest to 1195 ÷ 21? (a) 600 (b) 30 (c) 120 (d) 60
  39. 39.5.12 + 7.6 =
  40. 40.2/5 of 25 + 4 × 8 =

Answer key

  1. 37
  2. 192
  3. 5322
  4. 35
  5. 45000
  6. 19
  7. 2
  8. 7983
  9. 60
  10. 28
  11. 50
  12. 849
  13. 28
  14. 7
  15. 29
  16. 7
  17. 36
  18. 2
  19. 77.8
  20. 30
  21. 7664
  22. 60
  23. 1/6
  24. 120
  25. 8
  26. 6
  27. 6
  28. 34
  29. 10
  30. 7/6
  31. 360
  32. 27
  33. 86.8
  34. 6
  35. 36
  36. 270
  37. 4/21
  38. 60
  39. 12.72
  40. 42

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