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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 899 · 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.Round 35942 to the nearest ten.
  2. 2.1/2 + 5/7 =
  3. 3.11 painters can paint a school in 24 days. How many days would 6 painters take, working at the same speed?
  4. 4.Which is closest to 1602 ÷ 39? (a) 20 (b) 40 (c) 400 (d) 80
  5. 5.Two tanks hold 100 litres and 80 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  6. 6.Which is closest to 1607 ÷ 21? (a) 160 (b) 40 (c) 80 (d) 800
  7. 7.What is 3/7 of 126 kg?
  8. 8.Which of these numbers divides exactly by 11? (a) 2890 (b) 7178 (c) 9812 (d) 2386
  9. 9.30 + 9 × 2 − 29 =
  10. 10.Divide ₹99 between Pooja and Aditya in the ratio 7 : 2. How much does Aditya get (in ₹)?
  11. 11.Two tanks hold 70 litres and 80 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  12. 12.What is the smallest number you must take away from 322 so that it divides exactly by 11?
  13. 13.Zoya takes 48 seconds and Vivaan takes 36 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?
  14. 14.Find the HCF of 91 and 52.
  15. 15.Write 1/2 as a percent.
  16. 16.Which is closest to 1195 ÷ 31? (a) 20 (b) 40 (c) 80 (d) 400
  17. 17.What is the smallest number you must take away from 957 so that it divides exactly by 9?
  18. 18.Write 3/4 as a percent.
  19. 19.Find the LCM of 13, 2 and 8.
  20. 20.What is the smallest number you must take away from 700 so that it divides exactly by 11?
  21. 21.Which is closest to 102 + 801 + 399? (a) 1300 (b) 1400 (c) 1200 (d) 1500
  22. 22.What percent of 250 is 220?
  23. 23.Find the HCF of 18 and 10.
  24. 24.Find the LCM of 36 and 42.
  25. 25.Find the LCM of 4, 8 and 3.
  26. 26.Find the HCF of 24 and 21.
  27. 27.Find the LCM of 9, 10 and 6.
  28. 28.Two tanks hold 20 litres and 45 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  29. 29.Manav takes 50 seconds and Kavya takes 30 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?
  30. 30.Which is closest to 899 × 38? (Round each number first.) (a) 360000 (b) 72000 (c) 36000 (d) 3600
  31. 31.4/9 of 18 + 6 × 8 =
  32. 32.3 × (12 − 2) + 12 ÷ 3 =
  33. 33.6/7 − 2/10 =
  34. 34.66 ÷ 6 × 9 + 22 =
  35. 35.15% of a number is 57. What is the number?
  36. 36.2 : 11 = 10 : ?
  37. 37.A hall floor is 400 cm long and 250 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  38. 38.Find the LCM of 7 and 4.
  39. 39.Round 58251 to the nearest hundred.
  40. 40.11 ÷ 2 =

Answer key

  1. 35940
  2. 17/14
  3. 44
  4. 40
  5. 20
  6. 80
  7. 54
  8. 9812
  9. 19
  10. 22
  11. 10
  12. 3
  13. 144
  14. 13
  15. 50
  16. 40
  17. 3
  18. 75
  19. 104
  20. 7
  21. 1300
  22. 88
  23. 2
  24. 252
  25. 24
  26. 3
  27. 90
  28. 5
  29. 150
  30. 36000
  31. 56
  32. 34
  33. 23/35
  34. 121
  35. 380
  36. 55
  37. 40
  38. 28
  39. 58300
  40. 5.5

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