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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 502 · 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.What is the value of the digit 1 in 36.147? (a) 0.001 (b) 0.01 (c) 0.1 (d) 1
  2. 2.Which is the greatest: 0.023, 0.33, 0.259, 0.3? (a) 0.023 (b) 0.33 (c) 0.259 (d) 0.3
  3. 3.Which is the smallest: 0.79, 0.621, 0.7, 0.031? (a) 0.79 (b) 0.621 (c) 0.7 (d) 0.031
  4. 4.Which is the greatest: 0.45, 0.052, 0.363, 0.4? (a) 0.45 (b) 0.052 (c) 0.363 (d) 0.4
  5. 5.2.55 + 2.1 = ? (a) 4.75 (b) 4.55 (c) 2.76 (d) 4.65
  6. 6.What is the value of the digit 3 in 73.582? (a) 0.3 (b) 3 (c) 0.03 (d) 30
  7. 7.6.31 + 8.7 = ? (a) 14.91 (b) 15.11 (c) 7.18 (d) 15.01
  8. 8.4.33 + 2.1 = ? (a) 4.54 (b) 6.43 (c) 6.33 (d) 6.53
  9. 9.What is the value of the digit 9 in 37.491? (a) 9 (b) 0.9 (c) 0.009 (d) 0.09
  10. 10.5.48 + 2.7 = ? (a) 8.28 (b) 8.18 (c) 8.08 (d) 5.75
  11. 11.What is the value of the digit 9 in 53.689? (a) 9 (b) 0.9 (c) 0.009 (d) 0.09
  12. 12.Which is the smallest: 0.044, 0.612, 0.7, 0.74? (a) 0.044 (b) 0.612 (c) 0.7 (d) 0.74
  13. 13.9.77 + 8.5 = ? (a) 18.37 (b) 18.17 (c) 18.27 (d) 10.62
  14. 14.3.17 + 4.1 = ? (a) 7.17 (b) 3.58 (c) 7.27 (d) 7.37
  15. 15.3.64 + 2.7 = ? (a) 6.34 (b) 3.91 (c) 6.24 (d) 6.44
  16. 16.What is the value of the digit 9 in 15.698? (a) 0.9 (b) 9 (c) 0.009 (d) 0.09
  17. 17.4.76 + 2.9 = ? (a) 5.05 (b) 7.56 (c) 7.66 (d) 7.76
  18. 18.Which is the smallest: 0.6, 0.64, 0.043, 0.552? (a) 0.6 (b) 0.64 (c) 0.043 (d) 0.552
  19. 19.Which is the greatest: 0.83, 0.736, 0.8, 0.086? (a) 0.83 (b) 0.736 (c) 0.8 (d) 0.086
  20. 20.7.18 + 2.7 = ? (a) 9.98 (b) 9.88 (c) 9.78 (d) 7.45
  21. 21.4.91 + 3.9 = ? (a) 8.91 (b) 5.3 (c) 8.71 (d) 8.81
  22. 22.Which is the smallest: 0.578, 0.6, 0.65, 0.059? (a) 0.578 (b) 0.6 (c) 0.65 (d) 0.059
  23. 23.Which is the greatest: 0.448, 0.51, 0.027, 0.5? (a) 0.448 (b) 0.51 (c) 0.027 (d) 0.5
  24. 24.2.54 + 1.4 = ? (a) 4.04 (b) 2.68 (c) 3.84 (d) 3.94
  25. 25.8.82 + 9.6 = ? (a) 9.78 (b) 18.42 (c) 18.52 (d) 18.32
  26. 26.What is the value of the digit 6 in 16.234? (a) 60 (b) 6 (c) 0.6 (d) 0.06
  27. 27.Which is the smallest: 0.5, 0.015, 0.419, 0.52? (a) 0.5 (b) 0.015 (c) 0.419 (d) 0.52
  28. 28.7.13 + 6.5 = ? (a) 7.78 (b) 13.53 (c) 13.73 (d) 13.63
  29. 29.Which is the greatest: 0.34, 0.044, 0.3, 0.281? (a) 0.34 (b) 0.044 (c) 0.3 (d) 0.281
  30. 30.What is the value of the digit 8 in 25.871? (a) 8 (b) 0.008 (c) 0.08 (d) 0.8
  31. 31.What is the value of the digit 8 in 92.831? (a) 0.008 (b) 0.08 (c) 0.8 (d) 8
  32. 32.What is the value of the digit 7 in 42.367? (a) 0.007 (b) 7 (c) 0.07 (d) 0.7
  33. 33.Which is the greatest: 0.014, 0.295, 0.3, 0.33? (a) 0.014 (b) 0.295 (c) 0.3 (d) 0.33
  34. 34.What is the value of the digit 1 in 45.691? (a) 0.01 (b) 0.1 (c) 1 (d) 0.001
  35. 35.Which is the greatest: 0.111, 0.082, 0.21, 0.2? (a) 0.111 (b) 0.082 (c) 0.21 (d) 0.2
  36. 36.4.77 + 5.1 = ? (a) 9.87 (b) 9.97 (c) 5.28 (d) 9.77
  37. 37.What is the value of the digit 1 in 62.319? (a) 0.1 (b) 0.01 (c) 0.001 (d) 1
  38. 38.9.93 + 9.8 = ? (a) 10.91 (b) 19.73 (c) 19.83 (d) 19.63
  39. 39.9.01 + 5.1 = ? (a) 14.21 (b) 9.52 (c) 14.11 (d) 14.01
  40. 40.5.69 + 8.5 = ? (a) 14.29 (b) 14.19 (c) 6.54 (d) 14.09

Answer key

  1. 0.1
  2. 0.33
  3. 0.031
  4. 0.45
  5. 4.65
  6. 3
  7. 15.01
  8. 6.43
  9. 0.09
  10. 8.18
  11. 0.009
  12. 0.044
  13. 18.27
  14. 7.27
  15. 6.34
  16. 0.09
  17. 7.66
  18. 0.043
  19. 0.83
  20. 9.88
  21. 8.81
  22. 0.059
  23. 0.51
  24. 3.94
  25. 18.42
  26. 6
  27. 0.015
  28. 13.63
  29. 0.34
  30. 0.8
  31. 0.8
  32. 0.007
  33. 0.33
  34. 0.001
  35. 0.21
  36. 9.87
  37. 0.01
  38. 19.73
  39. 14.11
  40. 14.19

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