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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 687 · 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.Find the HCF of 15 and 6.
  2. 2.Find the LCM of 35 and 10.
  3. 3.Find the LCM of 7, 4 and 3.
  4. 4.30 ÷ 3 × 2 + 10 =
  5. 5.What is the smallest number you must add to 598 so that it divides exactly by 9?
  6. 6.4/5 − 1/3 =
  7. 7.The HCF of two numbers is 7 and their LCM is 84. One of the numbers is 21. What is the other number?
  8. 8.Which is closest to 2106 ÷ 29? (a) 700 (b) 140 (c) 35 (d) 70
  9. 9.If 7 cricket balls cost ₹336, how much do 10 cricket balls cost (in ₹)?
  10. 10.A car goes 66 km on 6 litres of petrol. How far can it go on 40 litres (in km)?
  11. 11.How many factors does 89 have?
  12. 12.What percent of 500 is 120?
  13. 13.Find the LCM of 8, 2 and 14.
  14. 14.The HCF of two numbers is 4 and their LCM is 24. One of the numbers is 12. What is the other number?
  15. 15.Isha takes 60 seconds and Vivaan takes 75 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?
  16. 16.Divide ₹132 between Meera and Arjun in the ratio 7 : 4. How much does Meera get (in ₹)?
  17. 17.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 3, 9 or 12.
  18. 18.Which is closest to 698 × 81? (Round each number first.) (a) 5600 (b) 112000 (c) 56000 (d) 560000
  19. 19.Find the smallest number bigger than 8 that leaves a remainder of 3 when divided by 4, 6 or 8.
  20. 20.Which of these numbers divides exactly by 9? (a) 9234 (b) 5929 (c) 3199 (d) 5307
  21. 21.What is 1/3 of 54 litres?
  22. 22.What is 9/10 of 90 km?
  23. 23.1/2 of 6 + 2 × 3 =
  24. 24.15 − 4 ÷ 2 × 4 =
  25. 25.Find the LCM of 15 and 40.
  26. 26.30 ÷ 3 × 4 + 2 =
  27. 27.Round 4519 to the nearest ten.
  28. 28.The ratio of boys to girls in a class is 1 : 5. There are 8 boys. How many girls are there?
  29. 29.12 + 6 × 4 − 5 =
  30. 30.What is the smallest number you must add to 946 so that it divides exactly by 9?
  31. 31.Find the LCM of 9 and 21.
  32. 32.5.62 + 6.1 =
  33. 33.Which is closest to 801 + 504 + 195? (a) 1400 (b) 1600 (c) 1700 (d) 1500
  34. 34.If 11 notebooks cost ₹176, how much do 13 notebooks cost (in ₹)?
  35. 35.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 3, 10 or 4.
  36. 36.How many factors does 25 have?
  37. 37.What is the smallest number you must add to 676 so that it divides exactly by 3?
  38. 38.Round 32.39 to one decimal place. =
  39. 39.Ishaan scored 19 marks out of 25 in a test. What percentage did Ishaan score?
  40. 40.Round 60513 to the nearest thousand.

Answer key

  1. 3
  2. 70
  3. 84
  4. 30
  5. 5
  6. 7/15
  7. 28
  8. 70
  9. 480
  10. 440
  11. 2
  12. 24
  13. 56
  14. 8
  15. 300
  16. 84
  17. 37
  18. 56000
  19. 27
  20. 9234
  21. 18
  22. 81
  23. 9
  24. 7
  25. 120
  26. 42
  27. 4520
  28. 40
  29. 31
  30. 8
  31. 63
  32. 11.72
  33. 1500
  34. 208
  35. 62
  36. 3
  37. 2
  38. 32.4
  39. 76
  40. 61000

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