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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 736 · 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. 1.29.5 ÷ 5 =
  2. 2.48 ÷ 4 × 3 + 5 =
  3. 3.Round 63.26 to one decimal place. =
  4. 4.Three temple bells ring every 30, 4 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  5. 5.A hall floor is 140 cm long and 80 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  6. 6.Which is closest to 296 × 60? (Round each number first.) (a) 1800 (b) 36000 (c) 18000 (d) 180000
  7. 7.Which of these numbers divides exactly by 3? (a) 3398 (b) 1580 (c) 6920 (d) 4575
  8. 8.39.6 ÷ 4 =
  9. 9.50 − 8 ÷ 4 × 7 =
  10. 10.20% of a number is 71. What is the number?
  11. 11.Find the LCM of 2, 5 and 4.
  12. 12.(2 + 12) × 4 − 11 =
  13. 13.Ishaan takes 40 seconds and Tara takes 50 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?
  14. 14.A car goes 207 km on 9 litres of petrol. How far can it go on 39 litres (in km)?
  15. 15.A car goes 60 km on 5 litres of petrol. How far can it go on 20 litres (in km)?
  16. 16.Find the LCM of 10 and 18.
  17. 17.Round 85.81 to one decimal place. =
  18. 18.5/6 of 54 + 8 × 3 =
  19. 19.4/12 + 1/3 =
  20. 20.What is 1/3 of 33 kg?
  21. 21.A hall floor is 420 cm long and 300 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  22. 22.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 5, 10 or 12.
  23. 23.Which of these numbers divides exactly by 11? (a) 2235 (b) 4609 (c) 5609 (d) 7021
  24. 24.Write 3/4 as a percent.
  25. 25.If 5 pens cost ₹135, how much do 4 pens cost (in ₹)?
  26. 26.Three temple bells ring every 6, 9 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  27. 27.Find the HCF of 60 and 50.
  28. 28.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?
  29. 29.Which is closest to 697 × 28? (Round each number first.) (a) 2100 (b) 210000 (c) 21000 (d) 42000
  30. 30.The ratio of boys to girls in a class is 7 : 1. There are 21 boys. How many girls are there?
  31. 31.Round 43937 to the nearest ten.
  32. 32.15.3 ÷ 9 =
  33. 33.10% of a number is 5. What is the number?
  34. 34.Find the LCM of 6, 3 and 5.
  35. 35.(16 + 7) × 9 − 2 =
  36. 36.What is 25% of 460?
  37. 37.3 × (26 − 17) + 99 ÷ 9 =
  38. 38.Which is closest to 402 × 69? (Round each number first.) (a) 280000 (b) 28000 (c) 56000 (d) 2800
  39. 39.Two tanks hold 90 litres and 40 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  40. 40.A car goes 150 km on 10 litres of petrol. How far can it go on 15 litres (in km)?

Answer key

  1. 5.9
  2. 41
  3. 63.3
  4. 60
  5. 28
  6. 18000
  7. 4575
  8. 9.9
  9. 36
  10. 355
  11. 20
  12. 45
  13. 200
  14. 897
  15. 240
  16. 90
  17. 85.8
  18. 69
  19. 2/3
  20. 11
  21. 35
  22. 61
  23. 4609
  24. 75
  25. 108
  26. 36
  27. 10
  28. 50
  29. 21000
  30. 3
  31. 43940
  32. 1.7
  33. 50
  34. 30
  35. 205
  36. 115
  37. 38
  38. 28000
  39. 10
  40. 225

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