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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 971 · 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 30% of 320?
  2. 2.The HCF of two numbers is 8 and their LCM is 360. One of the numbers is 72. What is the other number?
  3. 3.Round 87506 to the nearest ten.
  4. 4.How many factors does 50 have?
  5. 5.What is 50% of 72?
  6. 6.4/7 − 1/8 =
  7. 7.Which is closest to 602 + 498 + 197? (a) 1500 (b) 1300 (c) 1200 (d) 1400
  8. 8.6 × (29 − 16) + 24 ÷ 3 =
  9. 9.Find the HCF of 99 and 77.
  10. 10.12 ÷ 2 × 8 + 3 =
  11. 11.Zoya takes 50 seconds and Sneha 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?
  12. 12.60 ÷ 6 × 5 + 9 =
  13. 13.What percent of 40 is 26?
  14. 14.What percent of 500 is 150?
  15. 15.9 painters can paint a school in 26 days. How many days would 13 painters take, working at the same speed?
  16. 16.6/9 + 4/5 =
  17. 17.48 + 8 × 10 − 14 =
  18. 18.What is the smallest number you must take away from 689 so that it divides exactly by 4?
  19. 19.If 3 kg of rice costs ₹189, how many kg can you buy for ₹693?
  20. 20.What percent of 40 is 2?
  21. 21.5.23 + 1.8 =
  22. 22.A hall floor is 350 cm long and 300 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  23. 23.Which is closest to 399 × 19? (Round each number first.) (a) 800 (b) 16000 (c) 8000 (d) 80000
  24. 24.If 12 cricket balls cost ₹228, how much do 15 cricket balls cost (in ₹)?
  25. 25.A hall floor is 180 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  26. 26.Three temple bells ring every 24, 30 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  27. 27.Three temple bells ring every 20, 6 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  28. 28.The HCF of two numbers is 8 and their LCM is 288. One of the numbers is 32. What is the other number?
  29. 29.Which is closest to 895 + 496 + 600? (a) 2000 (b) 1900 (c) 2200 (d) 2100
  30. 30.45 + 10 × 11 − 2 =
  31. 31.Find the LCM of 10 and 35.
  32. 32.Which is closest to 1998 ÷ 51? (a) 20 (b) 400 (c) 40 (d) 80
  33. 33.Which is closest to 1799 ÷ 21? (a) 180 (b) 900 (c) 45 (d) 90
  34. 34.Which is closest to 299 × 68? (Round each number first.) (a) 2100 (b) 21000 (c) 210000 (d) 42000
  35. 35.40 ÷ 8 × 2 + 23 =
  36. 36.What is the smallest number you must add to 854 so that it divides exactly by 13?
  37. 37.25 − 6 ÷ 3 × 2 =
  38. 38.Write 1/2 as a percent.
  39. 39.(2 + 3) × 2 − 6 =
  40. 40.Which of these numbers divides exactly by 6? (a) 7859 (b) 6872 (c) 4746 (d) 1576

Answer key

  1. 96
  2. 40
  3. 87510
  4. 6
  5. 36
  6. 25/56
  7. 1300
  8. 86
  9. 11
  10. 51
  11. 450
  12. 59
  13. 65
  14. 30
  15. 18
  16. 22/15
  17. 114
  18. 1
  19. 11
  20. 5
  21. 7.03
  22. 42
  23. 8000
  24. 285
  25. 30
  26. 120
  27. 60
  28. 72
  29. 2000
  30. 153
  31. 70
  32. 40
  33. 90
  34. 21000
  35. 33
  36. 4
  37. 21
  38. 50
  39. 4
  40. 4746

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