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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 933 · 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 smallest: 0.022, 0.2, 0.147, 0.23? (a) 0.022 (b) 0.2 (c) 0.147 (d) 0.23
  2. 2.Which is the smallest: 0.051, 0.26, 0.2, 0.142? (a) 0.051 (b) 0.26 (c) 0.2 (d) 0.142
  3. 3.Which is the greatest: 0.5, 0.52, 0.064, 0.453? (a) 0.5 (b) 0.52 (c) 0.064 (d) 0.453
  4. 4.Which is the greatest: 0.322, 0.48, 0.4, 0.012? (a) 0.322 (b) 0.48 (c) 0.4 (d) 0.012
  5. 5.What is the value of the digit 5 in 75.261? (a) 50 (b) 0.5 (c) 0.05 (d) 5
  6. 6.Which is the greatest: 0.031, 0.769, 0.8, 0.86? (a) 0.031 (b) 0.769 (c) 0.8 (d) 0.86
  7. 7.What is the value of the digit 7 in 52.678? (a) 0.7 (b) 7 (c) 0.07 (d) 0.007
  8. 8.What is the value of the digit 7 in 58.731? (a) 0.007 (b) 0.7 (c) 7 (d) 0.07
  9. 9.Which is the greatest: 0.337, 0.41, 0.015, 0.4? (a) 0.337 (b) 0.41 (c) 0.015 (d) 0.4
  10. 10.Which is the smallest: 0.8, 0.051, 0.89, 0.712? (a) 0.8 (b) 0.051 (c) 0.89 (d) 0.712
  11. 11.What is the value of the digit 2 in 13.265? (a) 0.2 (b) 0.002 (c) 2 (d) 0.02
  12. 12.1.33 + 8.4 = ? (a) 9.83 (b) 9.63 (c) 9.73 (d) 2.17
  13. 13.What is the value of the digit 3 in 23.517? (a) 0.3 (b) 3 (c) 0.03 (d) 30
  14. 14.Which is the greatest: 0.018, 0.418, 0.5, 0.58? (a) 0.018 (b) 0.418 (c) 0.5 (d) 0.58
  15. 15.Which is the smallest: 0.582, 0.094, 0.6, 0.68? (a) 0.582 (b) 0.094 (c) 0.6 (d) 0.68
  16. 16.2.61 + 3.2 = ? (a) 2.93 (b) 5.71 (c) 5.81 (d) 5.91
  17. 17.6.75 + 5.7 = ? (a) 12.55 (b) 12.45 (c) 12.35 (d) 7.32
  18. 18.7.75 + 5.9 = ? (a) 8.34 (b) 13.55 (c) 13.65 (d) 13.75
  19. 19.Which is the greatest: 0.027, 0.3, 0.31, 0.217? (a) 0.027 (b) 0.3 (c) 0.31 (d) 0.217
  20. 20.What is the value of the digit 8 in 81.379? (a) 0.08 (b) 8 (c) 80 (d) 0.8
  21. 21.8.74 + 2.5 = ? (a) 11.34 (b) 11.24 (c) 11.14 (d) 8.99
  22. 22.9.03 + 2.4 = ? (a) 9.27 (b) 11.53 (c) 11.33 (d) 11.43
  23. 23.Which is the greatest: 0.8, 0.84, 0.081, 0.761? (a) 0.8 (b) 0.84 (c) 0.081 (d) 0.761
  24. 24.9.92 + 6.1 = ? (a) 16.02 (b) 10.53 (c) 15.92 (d) 16.12
  25. 25.2.03 + 3.2 = ? (a) 2.35 (b) 5.33 (c) 5.23 (d) 5.13
  26. 26.What is the value of the digit 9 in 12.965? (a) 0.9 (b) 0.009 (c) 0.09 (d) 9
  27. 27.What is the value of the digit 4 in 18.749? (a) 4 (b) 0.004 (c) 0.4 (d) 0.04
  28. 28.Which is the greatest: 0.2, 0.029, 0.27, 0.186? (a) 0.2 (b) 0.029 (c) 0.27 (d) 0.186
  29. 29.4.13 + 4.4 = ? (a) 8.63 (b) 8.43 (c) 8.53 (d) 4.57
  30. 30.5.67 + 6.3 = ? (a) 12.07 (b) 11.87 (c) 11.97 (d) 6.3
  31. 31.Which is the greatest: 0.099, 0.35, 0.3, 0.267? (a) 0.099 (b) 0.35 (c) 0.3 (d) 0.267
  32. 32.3.14 + 6.2 = ? (a) 3.76 (b) 9.24 (c) 9.44 (d) 9.34
  33. 33.1.04 + 3.9 = ? (a) 4.84 (b) 4.94 (c) 5.04 (d) 1.43
  34. 34.Which is the greatest: 0.066, 0.23, 0.2, 0.116? (a) 0.066 (b) 0.23 (c) 0.2 (d) 0.116
  35. 35.What is the value of the digit 4 in 53.467? (a) 0.004 (b) 0.04 (c) 0.4 (d) 4
  36. 36.What is the value of the digit 2 in 32.187? (a) 0.2 (b) 20 (c) 0.02 (d) 2
  37. 37.2.05 + 7.8 = ? (a) 9.75 (b) 9.85 (c) 9.95 (d) 2.83
  38. 38.Which is the smallest: 0.559, 0.64, 0.6, 0.046? (a) 0.559 (b) 0.64 (c) 0.6 (d) 0.046
  39. 39.1.88 + 4.4 = ? (a) 6.38 (b) 2.32 (c) 6.28 (d) 6.18
  40. 40.Which is the smallest: 0.729, 0.026, 0.84, 0.8? (a) 0.729 (b) 0.026 (c) 0.84 (d) 0.8

Answer key

  1. 0.022
  2. 0.051
  3. 0.52
  4. 0.48
  5. 5
  6. 0.86
  7. 0.07
  8. 0.7
  9. 0.41
  10. 0.051
  11. 0.2
  12. 9.73
  13. 3
  14. 0.58
  15. 0.094
  16. 5.81
  17. 12.45
  18. 13.65
  19. 0.31
  20. 80
  21. 11.24
  22. 11.43
  23. 0.84
  24. 16.02
  25. 5.23
  26. 0.9
  27. 0.04
  28. 0.27
  29. 8.53
  30. 11.97
  31. 0.35
  32. 9.34
  33. 4.94
  34. 0.23
  35. 0.4
  36. 2
  37. 9.85
  38. 0.046
  39. 6.28
  40. 0.026

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