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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 868 · 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 74.18 to one decimal place. =
  2. 2.The ratio of boys to girls in a class is 1 : 5. There are 7 boys. How many girls are there?
  3. 3.What is the smallest number you must take away from 323 so that it divides exactly by 13?
  4. 4.What is the smallest number you must take away from 775 so that it divides exactly by 13?
  5. 5.Round 42353 to the nearest hundred.
  6. 6.Find the smallest number bigger than 9 that leaves a remainder of 4 when divided by 9, 8 or 6.
  7. 7.1/2 of 10 + 6 × 3 =
  8. 8.1/2 of 8 + 3 × 4 =
  9. 9.Find the HCF of 98 and 56.
  10. 10.How many factors does 29 have?
  11. 11.A hall floor is 210 cm long and 90 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  12. 12.Find the smallest number bigger than 15 that leaves a remainder of 4 when divided by 15, 5 or 8.
  13. 13.Two tanks hold 35 litres and 15 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  14. 14.A hostel has enough food for 5 students for 16 days. How many days will the same food last for 10 students?
  15. 15.The HCF of two numbers is 8 and their LCM is 112. One of the numbers is 16. What is the other number?
  16. 16.Which is closest to 1198 ÷ 29? (a) 40 (b) 400 (c) 80 (d) 20
  17. 17.If 7 mangoes cost ₹385, how much do 10 mangoes cost (in ₹)?
  18. 18.A hostel has enough food for 12 students for 25 days. How many days will the same food last for 20 students?
  19. 19.If 5 bottles of juice cost ₹195, how much do 6 bottles of juice cost (in ₹)?
  20. 20.Find the HCF of 49 and 56.
  21. 21.Three temple bells ring every 6, 10 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  22. 22.Find the HCF of 20 and 12.
  23. 23.If 7 bottles of juice cost ₹98, how much do 2 bottles of juice cost (in ₹)?
  24. 24.Write 3/5 as a percent.
  25. 25.Round 43.61 to one decimal place. =
  26. 26.7 : 10 = 21 : ?
  27. 27.Three temple bells ring every 10, 15 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  28. 28.Divide ₹143 between Zoya and Manav in the ratio 5 : 8. How much does Zoya get (in ₹)?
  29. 29.7.46 + 2.8 =
  30. 30.Divide ₹660 between Farhan and Dev in the ratio 3 : 8. How much does Farhan get (in ₹)?
  31. 31.13 + 9 × 12 − 1 =
  32. 32.2/8 − 1/9 =
  33. 33.If 7 kites cost ₹224, how much do 10 kites cost (in ₹)?
  34. 34.Two tanks hold 20 litres and 90 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  35. 35.Write 1/4 as a percent.
  36. 36.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 3, 10 or 8.
  37. 37.2/5 − 2/11 =
  38. 38.24.6 ÷ 3 =
  39. 39.Find the LCM of 8, 7 and 14.
  40. 40.3/4 × 4/8 =

Answer key

  1. 74.2
  2. 35
  3. 11
  4. 8
  5. 42400
  6. 76
  7. 23
  8. 16
  9. 14
  10. 2
  11. 21
  12. 124
  13. 5
  14. 8
  15. 56
  16. 40
  17. 550
  18. 15
  19. 234
  20. 7
  21. 60
  22. 4
  23. 28
  24. 60
  25. 43.6
  26. 30
  27. 60
  28. 55
  29. 10.26
  30. 180
  31. 120
  32. 5/36
  33. 320
  34. 10
  35. 25
  36. 122
  37. 12/55
  38. 8.2
  39. 56
  40. 3/8

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