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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 127 · 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: 0.58, 0.496, 0.5, 0.089? (a) 0.58 (b) 0.496 (c) 0.5 (d) 0.089
  2. 2.3.86 + 4.1 = ? (a) 8.06 (b) 7.96 (c) 4.27 (d) 7.86
  3. 3.What is the value of the digit 2 in 82.395? (a) 2 (b) 0.02 (c) 0.2 (d) 20
  4. 4.3.47 + 3.1 = ? (a) 3.78 (b) 6.67 (c) 6.47 (d) 6.57
  5. 5.What is the value of the digit 7 in 78.569? (a) 0.7 (b) 0.07 (c) 7 (d) 70
  6. 6.What is the value of the digit 2 in 24.358? (a) 0.2 (b) 2 (c) 0.02 (d) 20
  7. 7.7.63 + 6.5 = ? (a) 8.28 (b) 14.13 (c) 14.23 (d) 14.03
  8. 8.What is the value of the digit 7 in 59.478? (a) 7 (b) 0.07 (c) 0.7 (d) 0.007
  9. 9.What is the value of the digit 2 in 21.689? (a) 2 (b) 0.02 (c) 20 (d) 0.2
  10. 10.What is the value of the digit 6 in 19.567? (a) 0.06 (b) 0.006 (c) 0.6 (d) 6
  11. 11.What is the value of the digit 8 in 28.573? (a) 0.8 (b) 80 (c) 0.08 (d) 8
  12. 12.What is the value of the digit 1 in 51.968? (a) 10 (b) 0.1 (c) 1 (d) 0.01
  13. 13.What is the value of the digit 2 in 25.891? (a) 0.02 (b) 20 (c) 2 (d) 0.2
  14. 14.What is the value of the digit 5 in 52.431? (a) 5 (b) 50 (c) 0.05 (d) 0.5
  15. 15.Which is the greatest: 0.083, 0.5, 0.444, 0.56? (a) 0.083 (b) 0.5 (c) 0.444 (d) 0.56
  16. 16.What is the value of the digit 4 in 87.914? (a) 0.004 (b) 0.04 (c) 0.4 (d) 4
  17. 17.Which is the greatest: 0.031, 0.129, 0.29, 0.2? (a) 0.031 (b) 0.129 (c) 0.29 (d) 0.2
  18. 18.4.54 + 1.2 = ? (a) 5.84 (b) 5.74 (c) 4.66 (d) 5.64
  19. 19.Which is the greatest: 0.579, 0.6, 0.64, 0.035? (a) 0.579 (b) 0.6 (c) 0.64 (d) 0.035
  20. 20.What is the value of the digit 8 in 24.698? (a) 0.08 (b) 0.8 (c) 0.008 (d) 8
  21. 21.9.74 + 1.7 = ? (a) 11.44 (b) 11.34 (c) 9.91 (d) 11.54
  22. 22.1.71 + 4.8 = ? (a) 2.19 (b) 6.51 (c) 6.41 (d) 6.61
  23. 23.What is the value of the digit 8 in 52.378? (a) 0.008 (b) 0.08 (c) 0.8 (d) 8
  24. 24.Which is the smallest: 0.2, 0.25, 0.164, 0.081? (a) 0.2 (b) 0.25 (c) 0.164 (d) 0.081
  25. 25.What is the value of the digit 9 in 94.821? (a) 90 (b) 9 (c) 0.9 (d) 0.09
  26. 26.Which is the greatest: 0.4, 0.45, 0.066, 0.349? (a) 0.4 (b) 0.45 (c) 0.066 (d) 0.349
  27. 27.3.29 + 8.4 = ? (a) 11.59 (b) 11.79 (c) 11.69 (d) 4.13
  28. 28.1.01 + 6.2 = ? (a) 7.11 (b) 7.21 (c) 1.63 (d) 7.31
  29. 29.What is the value of the digit 9 in 91.436? (a) 0.09 (b) 90 (c) 0.9 (d) 9
  30. 30.What is the value of the digit 6 in 56.213? (a) 6 (b) 0.6 (c) 0.06 (d) 60
  31. 31.2.07 + 7.6 = ? (a) 2.83 (b) 9.77 (c) 9.67 (d) 9.57
  32. 32.Which is the smallest: 0.019, 0.39, 0.251, 0.3? (a) 0.019 (b) 0.39 (c) 0.251 (d) 0.3
  33. 33.1.11 + 7.8 = ? (a) 8.81 (b) 1.89 (c) 9.01 (d) 8.91
  34. 34.What is the value of the digit 4 in 57.463? (a) 0.004 (b) 0.04 (c) 4 (d) 0.4
  35. 35.What is the value of the digit 4 in 41.637? (a) 0.04 (b) 0.4 (c) 40 (d) 4
  36. 36.What is the value of the digit 4 in 16.742? (a) 0.4 (b) 0.004 (c) 4 (d) 0.04
  37. 37.9.39 + 3.9 = ? (a) 13.19 (b) 13.39 (c) 13.29 (d) 9.78
  38. 38.Which is the smallest: 0.224, 0.073, 0.36, 0.3? (a) 0.224 (b) 0.073 (c) 0.36 (d) 0.3
  39. 39.What is the value of the digit 5 in 34.185? (a) 0.5 (b) 0.005 (c) 0.05 (d) 5
  40. 40.6.88 + 2.8 = ? (a) 9.78 (b) 9.58 (c) 9.68 (d) 7.16

Answer key

  1. 0.58
  2. 7.96
  3. 2
  4. 6.57
  5. 70
  6. 20
  7. 14.13
  8. 0.07
  9. 20
  10. 0.06
  11. 8
  12. 1
  13. 20
  14. 50
  15. 0.56
  16. 0.004
  17. 0.29
  18. 5.74
  19. 0.64
  20. 0.008
  21. 11.44
  22. 6.51
  23. 0.008
  24. 0.081
  25. 90
  26. 0.45
  27. 11.69
  28. 7.21
  29. 90
  30. 6
  31. 9.67
  32. 0.019
  33. 8.91
  34. 0.4
  35. 40
  36. 0.04
  37. 13.29
  38. 0.073
  39. 0.005
  40. 9.68

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