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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 856 · 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 1944 to the nearest hundred.
  2. 2.108 ÷ 9 × 6 + 6 =
  3. 3.A hall floor is 300 cm long and 240 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  4. 4.Round 26.08 to one decimal place. =
  5. 5.10 painters can paint a school in 17 days. How many days would 5 painters take, working at the same speed?
  6. 6.Find the HCF of 16 and 14.
  7. 7.A hostel has enough food for 2 students for 5 days. How many days will the same food last for 5 students?
  8. 8.Which of these numbers divides exactly by 4? (a) 8742 (b) 8304 (c) 1565 (d) 3627
  9. 9.What percent of 20 is 2?
  10. 10.Two tanks hold 160 litres and 100 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  11. 11.6.3 × 9 =
  12. 12.The ratio of boys to girls in a class is 8 : 7. There are 24 boys. How many girls are there?
  13. 13.Which is closest to 1194 ÷ 41? (a) 60 (b) 300 (c) 30 (d) 15
  14. 14.What is 15% of 420?
  15. 15.Find the LCM of 8, 3 and 12.
  16. 16.Isha takes 36 seconds and Priya takes 40 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?
  17. 17.4 × (17 − 6) + 16 ÷ 2 =
  18. 18.38 + 11 × 12 − 14 =
  19. 19.Divide ₹121 between Manav and Rohan in the ratio 5 : 6. How much does Manav get (in ₹)?
  20. 20.Find the HCF of 20 and 30.
  21. 21.Find the LCM of 4 and 10.
  22. 22.Three temple bells ring every 20, 15 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  23. 23.Which is closest to 597 + 197 + 896? (a) 1700 (b) 1600 (c) 1900 (d) 1800
  24. 24.Round 13433 to the nearest ten.
  25. 25.Find the LCM of 27 and 12.
  26. 26.24 ÷ 4 × 4 + 8 =
  27. 27.42 ÷ 7 × 4 + 8 =
  28. 28.What is 20% of 215?
  29. 29.1/6 of 30 + 9 × 9 =
  30. 30.What is the smallest number you must add to 539 so that it divides exactly by 6?
  31. 31.(6 + 6) × 8 − 7 =
  32. 32.(12 + 13) × 3 − 10 =
  33. 33.5.82 + 3.5 =
  34. 34.1/10 × 1/4 =
  35. 35.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?
  36. 36.1.32 + 2.1 =
  37. 37.Round 60964 to the nearest hundred.
  38. 38.What is 20% of 405?
  39. 39.108 ÷ 9 × 7 + 9 =
  40. 40.Find the LCM of 6, 2 and 14.

Answer key

  1. 1900
  2. 78
  3. 20
  4. 26.1
  5. 34
  6. 2
  7. 2
  8. 8304
  9. 10
  10. 20
  11. 56.7
  12. 21
  13. 30
  14. 63
  15. 24
  16. 360
  17. 52
  18. 156
  19. 55
  20. 10
  21. 20
  22. 60
  23. 1700
  24. 13430
  25. 108
  26. 32
  27. 32
  28. 43
  29. 86
  30. 1
  31. 89
  32. 65
  33. 9.32
  34. 1/40
  35. 60
  36. 3.42
  37. 61000
  38. 81
  39. 93
  40. 42

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