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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 619 · 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.What is the smallest number you must add to 484 so that it divides exactly by 9?
  2. 2.If 8 cricket balls cost ₹480, how much do 13 cricket balls cost (in ₹)?
  3. 3.If 4 notebooks cost ₹180, how much do 5 notebooks cost (in ₹)?
  4. 4.Find the LCM of 9 and 24.
  5. 5.Which of these numbers divides exactly by 11? (a) 7578 (b) 5915 (c) 2603 (d) 4884
  6. 6.Round 4778 to the nearest thousand.
  7. 7.(16 + 7) × 5 − 12 =
  8. 8.Two tanks hold 60 litres and 160 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  9. 9.37 − 42 ÷ 6 × 5 =
  10. 10.Find the LCM of 10 and 15.
  11. 11.6/8 − 1/2 =
  12. 12.44.4 ÷ 6 =
  13. 13.Which is closest to 900 × 88? (Round each number first.) (a) 162000 (b) 8100 (c) 810000 (d) 81000
  14. 14.Two tanks hold 200 litres and 350 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  15. 15.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?
  16. 16.Two tanks hold 280 litres and 160 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  17. 17.The HCF of two numbers is 7 and their LCM is 84. One of the numbers is 21. What is the other number?
  18. 18.4/7 − 1/9 =
  19. 19.Find the LCM of 13, 2 and 4.
  20. 20.A hall floor is 200 cm long and 80 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  21. 21.Divide ₹28 between Priya and Ananya in the ratio 1 : 3. How much does Priya get (in ₹)?
  22. 22.If 2 pencil boxes cost ₹34, how much do 15 pencil boxes cost (in ₹)?
  23. 23.Two tanks hold 135 litres and 90 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  24. 24.Write 1/10 as a percent.
  25. 25.1/4 of 24 + 2 × 5 =
  26. 26.Round 56.77 to one decimal place. =
  27. 27.Saanvi takes 40 seconds and Farhan takes 30 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.If 3 erasers cost ₹18, how much do 13 erasers cost (in ₹)?
  29. 29.What percent of 200 is 74?
  30. 30.9.59 + 5.9 =
  31. 31.12 : 5 = 108 : ?
  32. 32.Find the LCM of 7, 14 and 8.
  33. 33.Nisha takes 48 seconds and Saanvi 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?
  34. 34.A hall floor is 320 cm long and 120 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  35. 35.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 15, 5 or 8.
  36. 36.Find the LCM of 12, 7 and 3.
  37. 37.A hall floor is 125 cm long and 75 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  38. 38.Find the LCM of 2, 4 and 15.
  39. 39.8/12 × 6/8 =
  40. 40.If 2 kg of rice costs ₹132, how many kg can you buy for ₹462?

Answer key

  1. 2
  2. 780
  3. 225
  4. 72
  5. 4884
  6. 5000
  7. 103
  8. 20
  9. 2
  10. 30
  11. 1/4
  12. 7.4
  13. 81000
  14. 50
  15. 35
  16. 40
  17. 28
  18. 29/63
  19. 52
  20. 10
  21. 7
  22. 255
  23. 45
  24. 10
  25. 16
  26. 56.8
  27. 120
  28. 78
  29. 37
  30. 15.49
  31. 45
  32. 56
  33. 720
  34. 24
  35. 121
  36. 84
  37. 15
  38. 60
  39. 1/2
  40. 7

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