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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 540 · 40 questions
TalentJR

How to solve it (Same number of places): Add zeros at the end so every decimal has the same number of places (0.5 = 0.500). Compare or add them like whole numbers, keeping the decimal points in a line. Place value after the point: tenths (0.1), hundredths (0.01), thousandths (0.001).

NameDateTime takenScore ___ / 40
  1. 1.Which is the greatest: 0.34, 0.098, 0.3, 0.225? (a) 0.34 (b) 0.098 (c) 0.3 (d) 0.225
  2. 2.Which is the greatest: 0.087, 0.46, 0.331, 0.4? (a) 0.087 (b) 0.46 (c) 0.331 (d) 0.4
  3. 3.Which is the smallest: 0.554, 0.63, 0.095, 0.6? (a) 0.554 (b) 0.63 (c) 0.095 (d) 0.6
  4. 4.4.86 + 7.6 = ? (a) 12.36 (b) 12.56 (c) 12.46 (d) 5.62
  5. 5.What is the value of the digit 7 in 76.251? (a) 7 (b) 0.07 (c) 70 (d) 0.7
  6. 6.8.68 + 8.7 = ? (a) 17.48 (b) 17.28 (c) 9.55 (d) 17.38
  7. 7.Which is the greatest: 0.3, 0.288, 0.31, 0.028? (a) 0.3 (b) 0.288 (c) 0.31 (d) 0.028
  8. 8.Which is the greatest: 0.26, 0.2, 0.151, 0.091? (a) 0.26 (b) 0.2 (c) 0.151 (d) 0.091
  9. 9.9.62 + 7.3 = ? (a) 16.82 (b) 10.35 (c) 16.92 (d) 17.02
  10. 10.What is the value of the digit 1 in 17.459? (a) 1 (b) 0.1 (c) 10 (d) 0.01
  11. 11.What is the value of the digit 2 in 38.172? (a) 0.02 (b) 0.2 (c) 2 (d) 0.002
  12. 12.1.91 + 6.3 = ? (a) 2.54 (b) 8.21 (c) 8.11 (d) 8.31
  13. 13.Which is the greatest: 0.025, 0.5, 0.58, 0.462? (a) 0.025 (b) 0.5 (c) 0.58 (d) 0.462
  14. 14.What is the value of the digit 2 in 47.235? (a) 2 (b) 0.02 (c) 0.002 (d) 0.2
  15. 15.What is the value of the digit 4 in 98.345? (a) 0.004 (b) 4 (c) 0.04 (d) 0.4
  16. 16.What is the value of the digit 2 in 82.419? (a) 20 (b) 0.02 (c) 0.2 (d) 2
  17. 17.What is the value of the digit 8 in 38.615? (a) 0.8 (b) 8 (c) 80 (d) 0.08
  18. 18.Which is the smallest: 0.8, 0.774, 0.023, 0.87? (a) 0.8 (b) 0.774 (c) 0.023 (d) 0.87
  19. 19.2.86 + 9.4 = ? (a) 3.8 (b) 12.16 (c) 12.26 (d) 12.36
  20. 20.What is the value of the digit 4 in 58.412? (a) 0.04 (b) 0.4 (c) 4 (d) 0.004
  21. 21.Which is the greatest: 0.146, 0.24, 0.069, 0.2? (a) 0.146 (b) 0.24 (c) 0.069 (d) 0.2
  22. 22.What is the value of the digit 6 in 57.196? (a) 6 (b) 0.6 (c) 0.006 (d) 0.06
  23. 23.3.83 + 3.8 = ? (a) 4.21 (b) 7.73 (c) 7.53 (d) 7.63
  24. 24.What is the value of the digit 6 in 81.562? (a) 0.006 (b) 6 (c) 0.6 (d) 0.06
  25. 25.What is the value of the digit 1 in 21.673? (a) 0.1 (b) 1 (c) 0.01 (d) 10
  26. 26.Which is the greatest: 0.187, 0.2, 0.21, 0.072? (a) 0.187 (b) 0.2 (c) 0.21 (d) 0.072
  27. 27.What is the value of the digit 2 in 84.627? (a) 2 (b) 0.02 (c) 0.002 (d) 0.2
  28. 28.7.36 + 1.8 = ? (a) 9.26 (b) 9.16 (c) 7.54 (d) 9.06
  29. 29.Which is the smallest: 0.73, 0.627, 0.7, 0.042? (a) 0.73 (b) 0.627 (c) 0.7 (d) 0.042
  30. 30.Which is the greatest: 0.69, 0.034, 0.528, 0.6? (a) 0.69 (b) 0.034 (c) 0.528 (d) 0.6
  31. 31.What is the value of the digit 1 in 21.987? (a) 0.1 (b) 0.01 (c) 1 (d) 10
  32. 32.What is the value of the digit 5 in 52.369? (a) 50 (b) 0.05 (c) 5 (d) 0.5
  33. 33.3.14 + 5.7 = ? (a) 3.71 (b) 8.84 (c) 8.94 (d) 8.74
  34. 34.3.85 + 4.9 = ? (a) 8.75 (b) 8.65 (c) 8.85 (d) 4.34
  35. 35.What is the value of the digit 3 in 27.439? (a) 0.3 (b) 0.03 (c) 0.003 (d) 3
  36. 36.8.32 + 1.9 = ? (a) 10.12 (b) 10.22 (c) 8.51 (d) 10.32
  37. 37.9.61 + 9.5 = ? (a) 19.01 (b) 10.56 (c) 19.11 (d) 19.21
  38. 38.4.81 + 3.3 = ? (a) 5.14 (b) 8.01 (c) 8.11 (d) 8.21
  39. 39.What is the value of the digit 3 in 71.943? (a) 0.003 (b) 0.3 (c) 0.03 (d) 3
  40. 40.2.01 + 6.1 = ? (a) 2.62 (b) 8.11 (c) 8.21 (d) 8.01

Answer key

  1. 0.34
  2. 0.46
  3. 0.095
  4. 12.46
  5. 70
  6. 17.38
  7. 0.31
  8. 0.26
  9. 16.92
  10. 10
  11. 0.002
  12. 8.21
  13. 0.58
  14. 0.2
  15. 0.04
  16. 2
  17. 8
  18. 0.023
  19. 12.26
  20. 0.4
  21. 0.24
  22. 0.006
  23. 7.63
  24. 0.06
  25. 1
  26. 0.21
  27. 0.02
  28. 9.16
  29. 0.042
  30. 0.69
  31. 1
  32. 50
  33. 8.84
  34. 8.75
  35. 0.03
  36. 10.22
  37. 19.11
  38. 8.11
  39. 0.003
  40. 8.11

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