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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 81 · 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 82.39 to one decimal place. =
  2. 2.(9 + 6) × 2 − 8 =
  3. 3.34 − 8 ÷ 4 × 4 =
  4. 4.Which is closest to 1191 ÷ 19? (a) 600 (b) 120 (c) 60 (d) 30
  5. 5.Round 16433 to the nearest ten.
  6. 6.The ratio of boys to girls in a class is 2 : 1. There are 6 boys. How many girls are there?
  7. 7.Diya scored 14 marks out of 20 in a test. What percentage did Diya score?
  8. 8.(13 + 2) × 2 − 3 =
  9. 9.The ratio of boys to girls in a class is 1 : 4. There are 5 boys. How many girls are there?
  10. 10.What percent of 400 is 324?
  11. 11.The ratio of boys to girls in a class is 1 : 4. There are 9 boys. How many girls are there?
  12. 12.Two tanks hold 225 litres and 100 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  13. 13.16 ÷ 8 × 4 + 27 =
  14. 14.Find the LCM of 12 and 21.
  15. 15.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?
  16. 16.Rahul takes 54 seconds and Meera 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?
  17. 17.3 painters can paint a school in 16 days. How many days would 4 painters take, working at the same speed?
  18. 18.Divide ₹77 between Ishaan and Aarav in the ratio 4 : 3. How much does Ishaan get (in ₹)?
  19. 19.28 ÷ 4 × 8 + 3 =
  20. 20.What is the smallest number you must add to 592 so that it divides exactly by 3?
  21. 21.Which of these numbers divides exactly by 9? (a) 7263 (b) 9596 (c) 8987 (d) 1019
  22. 22.Find the LCM of 25 and 35.
  23. 23.The HCF of two numbers is 8 and their LCM is 240. One of the numbers is 40. What is the other number?
  24. 24.Find the LCM of 27 and 6.
  25. 25.Three temple bells ring every 12, 30 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  26. 26.What is 120% of 125?
  27. 27.Find the LCM of 28 and 32.
  28. 28.Which is closest to 198 + 99 + 502? (a) 700 (b) 800 (c) 900 (d) 1000
  29. 29.How many factors does 29 have?
  30. 30.2/3 + 2/6 =
  31. 31.What is 1/3 of 57 km?
  32. 32.Two tanks hold 40 litres and 25 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  33. 33.A car goes 152 km on 8 litres of petrol. How far can it go on 5 litres (in km)?
  34. 34.Which of these numbers divides exactly by 8? (a) 9504 (b) 5450 (c) 4267 (d) 5623
  35. 35.How many factors does 16 have?
  36. 36.The ratio of boys to girls in a class is 7 : 8. There are 28 boys. How many girls are there?
  37. 37.4/5 − 2/4 =
  38. 38.Find the HCF of 44 and 55.
  39. 39.Three temple bells ring every 5, 4 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  40. 40.Which is closest to 198 + 295 + 297? (a) 800 (b) 1000 (c) 700 (d) 900

Answer key

  1. 82.4
  2. 22
  3. 26
  4. 60
  5. 16430
  6. 3
  7. 70
  8. 27
  9. 20
  10. 81
  11. 36
  12. 25
  13. 35
  14. 84
  15. 5
  16. 270
  17. 12
  18. 44
  19. 59
  20. 2
  21. 7263
  22. 175
  23. 48
  24. 54
  25. 60
  26. 150
  27. 224
  28. 800
  29. 2
  30. 1
  31. 19
  32. 5
  33. 95
  34. 9504
  35. 5
  36. 32
  37. 3/10
  38. 11
  39. 60
  40. 800

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