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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 969 · 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.Write 17/20 as a percent.
  2. 2.Which of these numbers divides exactly by 4? (a) 7623 (b) 4822 (c) 4775 (d) 1852
  3. 3.Find the LCM of 4, 7 and 8.
  4. 4.41 + 9 × 9 − 15 =
  5. 5.Which of these numbers divides exactly by 3? (a) 2308 (b) 3111 (c) 7087 (d) 4787
  6. 6.What percent of 25 is 8?
  7. 7.A car goes 33 km on 3 litres of petrol. How far can it go on 4 litres (in km)?
  8. 8.1/2 of 8 + 7 × 5 =
  9. 9.48 ÷ 4 × 8 + 9 =
  10. 10.Write 1/2 as a percent.
  11. 11.Which is closest to 1609 ÷ 39? (a) 20 (b) 80 (c) 40 (d) 400
  12. 12.What is the smallest number you must add to 697 so that it divides exactly by 3?
  13. 13.How many factors does 42 have?
  14. 14.7.2 × 8 =
  15. 15.Saanvi takes 30 seconds and Ishaan takes 80 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.How many factors does 100 have?
  17. 17.Find the LCM of 4, 12 and 15.
  18. 18.How many factors does 82 have?
  19. 19.What is the smallest number you must add to 434 so that it divides exactly by 4?
  20. 20.(20 + 20) × 5 − 21 =
  21. 21.9 × (26 − 23) + 44 ÷ 4 =
  22. 22.1/8 × 7/11 =
  23. 23.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 4, 10 or 6.
  24. 24.(5 + 4) × 2 − 5 =
  25. 25.Find the LCM of 14, 5 and 6.
  26. 26.Which is closest to 404 × 32? (Round each number first.) (a) 12000 (b) 1200 (c) 24000 (d) 120000
  27. 27.Which is closest to 599 + 98 + 399? (a) 1000 (b) 1100 (c) 1300 (d) 1200
  28. 28.Which is closest to 597 + 896 + 601? (a) 2200 (b) 2300 (c) 2000 (d) 2100
  29. 29.Find the smallest number bigger than 9 that leaves a remainder of 2 when divided by 3, 8 or 9.
  30. 30.Find the LCM of 18 and 21.
  31. 31.Kavya takes 50 seconds and Zoya 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?
  32. 32.12 : 11 = 48 : ?
  33. 33.Find the HCF of 40 and 15.
  34. 34.Divide ₹387 between Arjun and Aarav in the ratio 1 : 8. How much does Aarav get (in ₹)?
  35. 35.61 − 56 ÷ 8 × 5 =
  36. 36.Which of these numbers divides exactly by 4? (a) 1352 (b) 3243 (c) 6582 (d) 5527
  37. 37.3.3 ÷ 3 =
  38. 38.55 − 56 ÷ 7 × 2 =
  39. 39.Find the HCF of 16 and 12.
  40. 40.6/8 − 5/7 =

Answer key

  1. 85
  2. 1852
  3. 56
  4. 107
  5. 3111
  6. 32
  7. 44
  8. 39
  9. 105
  10. 50
  11. 40
  12. 2
  13. 8
  14. 57.6
  15. 240
  16. 9
  17. 60
  18. 4
  19. 2
  20. 179
  21. 38
  22. 7/88
  23. 62
  24. 13
  25. 210
  26. 12000
  27. 1100
  28. 2100
  29. 74
  30. 126
  31. 150
  32. 44
  33. 5
  34. 344
  35. 26
  36. 1352
  37. 1.1
  38. 39
  39. 4
  40. 1/28

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