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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 231 · 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. 1.7/8 − 1/2 =
  2. 2.67.2 ÷ 7 =
  3. 3.If 4 mangoes cost ₹100, how much do 10 mangoes cost (in ₹)?
  4. 4.Divide ₹380 between Ishaan and Ananya in the ratio 3 : 7. How much does Ananya get (in ₹)?
  5. 5.30% of a number is 24. What is the number?
  6. 6.Round 57781 to the nearest hundred.
  7. 7.1/2 of 16 + 2 × 4 =
  8. 8.Find the LCM of 16 and 36.
  9. 9.What is 75% of 500?
  10. 10.A car goes 50 km on 5 litres of petrol. How far can it go on 4 litres (in km)?
  11. 11.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 4, 12 or 9.
  12. 12.What is 15% of 540?
  13. 13.Rohan scored 56 marks out of 80 in a test. What percentage did Rohan score?
  14. 14.Find the third proportional to 2 and 6 (that is, 2 : 6 = 6 : ?).
  15. 15.Round 29.11 to one decimal place. =
  16. 16.Find the LCM of 5, 6 and 3.
  17. 17.Find the third proportional to 5 and 20 (that is, 5 : 20 = 20 : ?).
  18. 18.12 : 14 = 36 : ?
  19. 19.Find the LCM of 9 and 8.
  20. 20.The ratio of boys to girls in a class is 2 : 1. There are 14 boys. How many girls are there?
  21. 21.Find the LCM of 16 and 10.
  22. 22.9/11 − 1/3 =
  23. 23.30% of a number is 45. What is the number?
  24. 24.A hall floor is 160 cm long and 120 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  25. 25.Round 89637 to the nearest hundred.
  26. 26.5 : 3 = 35 : ?
  27. 27.If 9 kg of rice costs ₹243, how many kg can you buy for ₹270?
  28. 28.A hall floor is 350 cm long and 250 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  29. 29.Find the HCF of 28 and 21.
  30. 30.If 5 kg of rice costs ₹145, how many kg can you buy for ₹87?
  31. 31.Find the LCM of 18 and 48.
  32. 32.What is the smallest number you must add to 356 so that it divides exactly by 3?
  33. 33.Which is closest to 804 × 28? (Round each number first.) (a) 24000 (b) 48000 (c) 2400 (d) 240000
  34. 34.Round 72929 to the nearest hundred.
  35. 35.Divide ₹56 between Diya and Manav in the ratio 1 : 3. How much does Manav get (in ₹)?
  36. 36.3/8 × 2/11 =
  37. 37.Write 1/2 as a percent.
  38. 38.Rohan scored 12 marks out of 20 in a test. What percentage did Rohan score?
  39. 39.What is 80% of 525?
  40. 40.Find the LCM of 40 and 45.

Answer key

  1. 3/8
  2. 9.6
  3. 250
  4. 266
  5. 80
  6. 57800
  7. 16
  8. 144
  9. 375
  10. 40
  11. 38
  12. 81
  13. 70
  14. 18
  15. 29.1
  16. 30
  17. 80
  18. 42
  19. 72
  20. 7
  21. 80
  22. 16/33
  23. 150
  24. 12
  25. 89600
  26. 21
  27. 10
  28. 35
  29. 7
  30. 3
  31. 144
  32. 1
  33. 24000
  34. 72900
  35. 42
  36. 3/44
  37. 50
  38. 60
  39. 420
  40. 360

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