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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 565 · 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. 1.14 ÷ 2 × 9 + 21 =
  2. 2.Which is closest to 1994 ÷ 49? (a) 40 (b) 80 (c) 400 (d) 20
  3. 3.The ratio of boys to girls in a class is 4 : 1. There are 16 boys. How many girls are there?
  4. 4.Find the LCM of 5 and 9.
  5. 5.68 − 64 ÷ 8 × 7 =
  6. 6.(14 + 20) × 2 − 3 =
  7. 7.Find the LCM of 6 and 10.
  8. 8.Find the LCM of 9 and 6.
  9. 9.40 ÷ 5 × 9 + 28 =
  10. 10.3 × (15 − 5) + 20 ÷ 5 =
  11. 11.Three temple bells ring every 5, 20 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  12. 12.What is 3/8 of ₹232?
  13. 13.What is 20% of 145?
  14. 14.6/9 − 2/12 =
  15. 15.33.6 ÷ 6 =
  16. 16.Find the third proportional to 4 and 20 (that is, 4 : 20 = 20 : ?).
  17. 17.If 8 erasers cost ₹456, how much do 19 erasers cost (in ₹)?
  18. 18.Which is closest to 402 + 497 + 97? (a) 1100 (b) 1200 (c) 1000 (d) 900
  19. 19.Which of these numbers divides exactly by 3? (a) 1909 (b) 4750 (c) 9096 (d) 8012
  20. 20.Find the LCM of 20 and 8.
  21. 21.Three temple bells ring every 4, 6 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  22. 22.120% of a number is 438. What is the number?
  23. 23.80% of a number is 184. What is the number?
  24. 24.What percent of 80 is 24?
  25. 25.8.1 × 9 =
  26. 26.If 9 kg of rice costs ₹234, how many kg can you buy for ₹208?
  27. 27.What is 1/2 of 40 kg?
  28. 28.Three temple bells ring every 18, 15 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  29. 29.Which of these numbers divides exactly by 11? (a) 3076 (b) 2793 (c) 7865 (d) 1905
  30. 30.23 + 11 × 7 − 22 =
  31. 31.Write 23/50 as a percent.
  32. 32.Which is closest to 802 × 41? (Round each number first.) (a) 64000 (b) 32000 (c) 320000 (d) 3200
  33. 33.What percent of 500 is 445?
  34. 34.Round 86.11 to one decimal place. =
  35. 35.What is the smallest number you must add to 146 so that it divides exactly by 12?
  36. 36.1/3 of 12 + 5 × 4 =
  37. 37.The HCF of two numbers is 5 and their LCM is 120. One of the numbers is 40. What is the other number?
  38. 38.A hall floor is 150 cm long and 120 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  39. 39.Find the LCM of 12 and 9.
  40. 40.Round 47532 to the nearest hundred.

Answer key

  1. 84
  2. 40
  3. 4
  4. 45
  5. 12
  6. 65
  7. 30
  8. 18
  9. 100
  10. 34
  11. 60
  12. 87
  13. 29
  14. 1/2
  15. 5.6
  16. 100
  17. 1083
  18. 1000
  19. 9096
  20. 40
  21. 60
  22. 365
  23. 230
  24. 30
  25. 72.9
  26. 8
  27. 20
  28. 90
  29. 7865
  30. 78
  31. 46
  32. 32000
  33. 89
  34. 86.1
  35. 10
  36. 24
  37. 15
  38. 20
  39. 36
  40. 47500

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