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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 587 · 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: 0.4, 0.46, 0.388, 0.061? (a) 0.4 (b) 0.46 (c) 0.388 (d) 0.061
  2. 2.1.41 + 7.8 = ? (a) 2.19 (b) 9.31 (c) 9.11 (d) 9.21
  3. 3.Which is the smallest: 0.021, 0.35, 0.3, 0.273? (a) 0.021 (b) 0.35 (c) 0.3 (d) 0.273
  4. 4.What is the value of the digit 6 in 89.614? (a) 6 (b) 0.006 (c) 0.06 (d) 0.6
  5. 5.2.62 + 9.1 = ? (a) 11.62 (b) 11.72 (c) 3.53 (d) 11.82
  6. 6.Which is the smallest: 0.7, 0.79, 0.027, 0.637? (a) 0.7 (b) 0.79 (c) 0.027 (d) 0.637
  7. 7.Which is the greatest: 0.031, 0.2, 0.27, 0.191? (a) 0.031 (b) 0.2 (c) 0.27 (d) 0.191
  8. 8.What is the value of the digit 6 in 43.682? (a) 6 (b) 0.6 (c) 0.06 (d) 0.006
  9. 9.2.92 + 7.1 = ? (a) 10.12 (b) 3.63 (c) 10.02 (d) 9.92
  10. 10.Which is the smallest: 0.583, 0.6, 0.65, 0.044? (a) 0.583 (b) 0.6 (c) 0.65 (d) 0.044
  11. 11.What is the value of the digit 7 in 76.924? (a) 7 (b) 0.7 (c) 70 (d) 0.07
  12. 12.What is the value of the digit 4 in 23.641? (a) 0.4 (b) 4 (c) 0.04 (d) 0.004
  13. 13.What is the value of the digit 6 in 21.675? (a) 6 (b) 0.006 (c) 0.6 (d) 0.06
  14. 14.What is the value of the digit 1 in 34.215? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  15. 15.Which is the smallest: 0.011, 0.4, 0.47, 0.341? (a) 0.011 (b) 0.4 (c) 0.47 (d) 0.341
  16. 16.Which is the greatest: 0.57, 0.435, 0.5, 0.052? (a) 0.57 (b) 0.435 (c) 0.5 (d) 0.052
  17. 17.Which is the greatest: 0.77, 0.019, 0.7, 0.663? (a) 0.77 (b) 0.019 (c) 0.7 (d) 0.663
  18. 18.8.33 + 3.1 = ? (a) 11.43 (b) 11.53 (c) 8.64 (d) 11.33
  19. 19.8.74 + 6.1 = ? (a) 14.94 (b) 14.84 (c) 14.74 (d) 9.35
  20. 20.1.23 + 1.8 = ? (a) 1.41 (b) 3.03 (c) 2.93 (d) 3.13
  21. 21.3.24 + 7.3 = ? (a) 3.97 (b) 10.44 (c) 10.64 (d) 10.54
  22. 22.Which is the greatest: 0.4, 0.016, 0.46, 0.385? (a) 0.4 (b) 0.016 (c) 0.46 (d) 0.385
  23. 23.Which is the smallest: 0.434, 0.5, 0.072, 0.52? (a) 0.434 (b) 0.5 (c) 0.072 (d) 0.52
  24. 24.3.94 + 1.6 = ? (a) 4.1 (b) 5.64 (c) 5.44 (d) 5.54
  25. 25.Which is the greatest: 0.298, 0.3, 0.37, 0.057? (a) 0.298 (b) 0.3 (c) 0.37 (d) 0.057
  26. 26.Which is the smallest: 0.85, 0.021, 0.8, 0.796? (a) 0.85 (b) 0.021 (c) 0.8 (d) 0.796
  27. 27.6.51 + 6.6 = ? (a) 13.01 (b) 7.17 (c) 13.11 (d) 13.21
  28. 28.Which is the smallest: 0.5, 0.55, 0.488, 0.046? (a) 0.5 (b) 0.55 (c) 0.488 (d) 0.046
  29. 29.7.87 + 5.2 = ? (a) 8.39 (b) 13.17 (c) 13.07 (d) 12.97
  30. 30.5.46 + 1.2 = ? (a) 5.58 (b) 6.56 (c) 6.66 (d) 6.76
  31. 31.What is the value of the digit 4 in 94.312? (a) 40 (b) 0.04 (c) 4 (d) 0.4
  32. 32.What is the value of the digit 2 in 16.972? (a) 2 (b) 0.02 (c) 0.002 (d) 0.2
  33. 33.4.55 + 1.9 = ? (a) 6.55 (b) 4.74 (c) 6.35 (d) 6.45
  34. 34.4.64 + 3.6 = ? (a) 8.14 (b) 5 (c) 8.34 (d) 8.24
  35. 35.2.61 + 3.9 = ? (a) 6.41 (b) 6.61 (c) 3 (d) 6.51
  36. 36.Which is the smallest: 0.035, 0.2, 0.22, 0.113? (a) 0.035 (b) 0.2 (c) 0.22 (d) 0.113
  37. 37.What is the value of the digit 7 in 78.324? (a) 70 (b) 0.7 (c) 0.07 (d) 7
  38. 38.What is the value of the digit 9 in 51.397? (a) 0.009 (b) 0.09 (c) 0.9 (d) 9
  39. 39.5.57 + 1.9 = ? (a) 7.57 (b) 7.37 (c) 7.47 (d) 5.76
  40. 40.6.02 + 7.6 = ? (a) 13.62 (b) 13.72 (c) 13.52 (d) 6.78

Answer key

  1. 0.46
  2. 9.21
  3. 0.021
  4. 0.6
  5. 11.72
  6. 0.027
  7. 0.27
  8. 0.6
  9. 10.02
  10. 0.044
  11. 70
  12. 0.04
  13. 0.6
  14. 0.01
  15. 0.011
  16. 0.57
  17. 0.77
  18. 11.43
  19. 14.84
  20. 3.03
  21. 10.54
  22. 0.46
  23. 0.072
  24. 5.54
  25. 0.37
  26. 0.021
  27. 13.11
  28. 0.046
  29. 13.07
  30. 6.66
  31. 4
  32. 0.002
  33. 6.45
  34. 8.24
  35. 6.51
  36. 0.035
  37. 70
  38. 0.09
  39. 7.47
  40. 13.62

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