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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 80 · 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. 1.5/11 − 1/10 =
  2. 2.The HCF of two numbers is 2 and their LCM is 144. One of the numbers is 18. What is the other number?
  3. 3.18 − 9 ÷ 3 × 3 =
  4. 4.Which of these numbers divides exactly by 4? (a) 5239 (b) 3348 (c) 1934 (d) 2562
  5. 5.Meera scored 17 marks out of 25 in a test. What percentage did Meera score?
  6. 6.7/12 × 5/10 =
  7. 7.Which of these numbers divides exactly by 11? (a) 5308 (b) 9200 (c) 1498 (d) 6556
  8. 8.Round 58657 to the nearest thousand.
  9. 9.Find the LCM of 16 and 14.
  10. 10.Two tanks hold 180 litres and 210 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  11. 11.What is 7/9 of 72 km?
  12. 12.Which is closest to 3500 ÷ 49? (a) 700 (b) 35 (c) 140 (d) 70
  13. 13.What is 3/4 of 8 km?
  14. 14.What is the smallest number you must add to 100 so that it divides exactly by 12?
  15. 15.What is the smallest number you must add to 931 so that it divides exactly by 9?
  16. 16.The HCF of two numbers is 8 and their LCM is 120. One of the numbers is 40. What is the other number?
  17. 17.33 ÷ 3 × 3 + 16 =
  18. 18.A car goes 88 km on 4 litres of petrol. How far can it go on 22 litres (in km)?
  19. 19.Three temple bells ring every 5, 8 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  20. 20.33 − 10 ÷ 2 × 3 =
  21. 21.Find the LCM of 14 and 12.
  22. 22.The HCF of two numbers is 2 and their LCM is 112. One of the numbers is 16. What is the other number?
  23. 23.Two tanks hold 40 litres and 30 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  24. 24.36 ÷ 6 × 3 + 26 =
  25. 25.If 8 cricket balls cost ₹24, how much do 9 cricket balls cost (in ₹)?
  26. 26.20 + 8 × 6 − 8 =
  27. 27.Priya takes 30 seconds and Rahul takes 40 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?
  28. 28.What is the smallest number you must add to 987 so that it divides exactly by 6?
  29. 29.The ratio of boys to girls in a class is 2 : 1. There are 10 boys. How many girls are there?
  30. 30.2/3 × 1/4 =
  31. 31.How many factors does 54 have?
  32. 32.Find the LCM of 4, 5 and 2.
  33. 33.Find the LCM of 12 and 27.
  34. 34.Which is closest to 201 + 295 + 896? (a) 1500 (b) 1400 (c) 1600 (d) 1300
  35. 35.6 : 14 = 24 : ?
  36. 36.Divide ₹299 between Isha and Farhan in the ratio 5 : 8. How much does Isha get (in ₹)?
  37. 37.(2 + 19) × 7 − 11 =
  38. 38.5.4 × 2 =
  39. 39.65 − 40 ÷ 5 × 7 =
  40. 40.How many factors does 75 have?

Answer key

  1. 39/110
  2. 16
  3. 9
  4. 3348
  5. 68
  6. 7/24
  7. 6556
  8. 59000
  9. 112
  10. 30
  11. 56
  12. 70
  13. 6
  14. 8
  15. 5
  16. 24
  17. 49
  18. 484
  19. 120
  20. 18
  21. 84
  22. 14
  23. 10
  24. 44
  25. 27
  26. 60
  27. 120
  28. 3
  29. 5
  30. 1/6
  31. 8
  32. 20
  33. 108
  34. 1400
  35. 56
  36. 115
  37. 136
  38. 10.8
  39. 9
  40. 6

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