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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 576 · 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. 1.4.6 ÷ 2 =
  2. 2.7.7 × 5 =
  3. 3.2/3 × 5/7 =
  4. 4.2/7 × 7/10 =
  5. 5.Which of these numbers divides exactly by 11? (a) 3802 (b) 9539 (c) 6732 (d) 3512
  6. 6.Find the LCM of 54 and 30.
  7. 7.A hall floor is 315 cm long and 90 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  8. 8.6/7 of 21 + 9 × 4 =
  9. 9.4.4 ÷ 2 =
  10. 10.Find the LCM of 10, 9 and 3.
  11. 11.If 2 mangoes cost ₹28, how much do 6 mangoes cost (in ₹)?
  12. 12.Which of these numbers divides exactly by 4? (a) 1415 (b) 5509 (c) 7491 (d) 2992
  13. 13.Which of these numbers divides exactly by 11? (a) 6031 (b) 4532 (c) 4445 (d) 7956
  14. 14.Which is closest to 500 × 68? (Round each number first.) (a) 3500 (b) 350000 (c) 35000 (d) 70000
  15. 15.Find the LCM of 28 and 8.
  16. 16.If 4 kg of rice costs ₹256, how many kg can you buy for ₹320?
  17. 17.Find the LCM of 4, 15 and 10.
  18. 18.If 5 notebooks cost ₹295, how much do 19 notebooks cost (in ₹)?
  19. 19.2/3 of 21 + 7 × 7 =
  20. 20.Find the smallest number bigger than 12 that leaves a remainder of 7 when divided by 12, 10 or 8.
  21. 21.Saanvi takes 30 seconds and Kavya takes 50 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?
  22. 22.What is the smallest number you must add to 162 so that it divides exactly by 4?
  23. 23.58 − 36 ÷ 6 × 5 =
  24. 24.(20 + 16) × 7 − 19 =
  25. 25.How many factors does 20 have?
  26. 26.6.1 × 4 =
  27. 27.(11 + 5) × 4 − 3 =
  28. 28.Karan scored 4 marks out of 20 in a test. What percentage did Karan score?
  29. 29.9 painters can paint a school in 25 days. How many days would 15 painters take, working at the same speed?
  30. 30.How many factors does 79 have?
  31. 31.Nisha scored 20 marks out of 50 in a test. What percentage did Nisha score?
  32. 32.What percent of 400 is 144?
  33. 33.1/3 + 4/7 =
  34. 34.Three temple bells ring every 10, 15 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  35. 35.4/5 − 1/3 =
  36. 36.Round 47702 to the nearest thousand.
  37. 37.A hall floor is 180 cm long and 120 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  38. 38.2 × (23 − 4) + 81 ÷ 9 =
  39. 39.Find the LCM of 6 and 10.
  40. 40.Find the LCM of 6 and 4.

Answer key

  1. 2.3
  2. 38.5
  3. 10/21
  4. 1/5
  5. 6732
  6. 270
  7. 14
  8. 54
  9. 2.2
  10. 90
  11. 84
  12. 2992
  13. 4532
  14. 35000
  15. 56
  16. 5
  17. 60
  18. 1121
  19. 63
  20. 127
  21. 150
  22. 2
  23. 28
  24. 233
  25. 6
  26. 24.4
  27. 61
  28. 20
  29. 15
  30. 2
  31. 40
  32. 36
  33. 19/21
  34. 60
  35. 7/15
  36. 48000
  37. 6
  38. 47
  39. 30
  40. 12

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