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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 514 · 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. 1.2.18 + 1.4 = ? (a) 3.68 (b) 3.58 (c) 2.32 (d) 3.48
  2. 2.3.03 + 1.4 = ? (a) 4.53 (b) 3.17 (c) 4.43 (d) 4.33
  3. 3.What is the value of the digit 5 in 56.147? (a) 0.05 (b) 5 (c) 0.5 (d) 50
  4. 4.3.71 + 7.4 = ? (a) 11.01 (b) 4.45 (c) 11.11 (d) 11.21
  5. 5.What is the value of the digit 9 in 53.192? (a) 9 (b) 0.09 (c) 0.9 (d) 0.009
  6. 6.Which is the greatest: 0.083, 0.51, 0.452, 0.5? (a) 0.083 (b) 0.51 (c) 0.452 (d) 0.5
  7. 7.9.68 + 9.5 = ? (a) 19.28 (b) 19.08 (c) 19.18 (d) 10.63
  8. 8.8.89 + 9.8 = ? (a) 18.79 (b) 18.59 (c) 18.69 (d) 9.87
  9. 9.1.41 + 7.6 = ? (a) 9.11 (b) 9.01 (c) 8.91 (d) 2.17
  10. 10.5.42 + 7.1 = ? (a) 12.52 (b) 6.13 (c) 12.42 (d) 12.62
  11. 11.What is the value of the digit 8 in 29.783? (a) 8 (b) 0.008 (c) 0.08 (d) 0.8
  12. 12.Which is the smallest: 0.6, 0.038, 0.65, 0.579? (a) 0.6 (b) 0.038 (c) 0.65 (d) 0.579
  13. 13.What is the value of the digit 7 in 73.469? (a) 0.7 (b) 0.07 (c) 70 (d) 7
  14. 14.3.02 + 3.1 = ? (a) 6.12 (b) 6.02 (c) 3.33 (d) 6.22
  15. 15.7.31 + 3.2 = ? (a) 10.51 (b) 10.61 (c) 7.63 (d) 10.41
  16. 16.7.33 + 5.4 = ? (a) 7.87 (b) 12.63 (c) 12.73 (d) 12.83
  17. 17.Which is the greatest: 0.4, 0.351, 0.088, 0.42? (a) 0.4 (b) 0.351 (c) 0.088 (d) 0.42
  18. 18.2.45 + 5.6 = ? (a) 8.05 (b) 7.95 (c) 8.15 (d) 3.01
  19. 19.5.31 + 3.9 = ? (a) 9.31 (b) 9.11 (c) 9.21 (d) 5.7
  20. 20.9.69 + 3.1 = ? (a) 12.79 (b) 12.89 (c) 12.69 (d) 10
  21. 21.What is the value of the digit 4 in 94.376? (a) 40 (b) 0.04 (c) 0.4 (d) 4
  22. 22.Which is the smallest: 0.181, 0.28, 0.2, 0.093? (a) 0.181 (b) 0.28 (c) 0.2 (d) 0.093
  23. 23.What is the value of the digit 3 in 79.342? (a) 0.3 (b) 0.03 (c) 0.003 (d) 3
  24. 24.1.34 + 4.6 = ? (a) 5.94 (b) 5.84 (c) 6.04 (d) 1.8
  25. 25.What is the value of the digit 2 in 71.382? (a) 2 (b) 0.2 (c) 0.002 (d) 0.02
  26. 26.What is the value of the digit 3 in 39.514? (a) 0.03 (b) 30 (c) 3 (d) 0.3
  27. 27.What is the value of the digit 8 in 48.376? (a) 0.8 (b) 8 (c) 80 (d) 0.08
  28. 28.1.85 + 2.3 = ? (a) 4.15 (b) 4.05 (c) 4.25 (d) 2.08
  29. 29.6.93 + 3.2 = ? (a) 7.25 (b) 10.13 (c) 10.23 (d) 10.03
  30. 30.Which is the smallest: 0.51, 0.436, 0.5, 0.038? (a) 0.51 (b) 0.436 (c) 0.5 (d) 0.038
  31. 31.6.15 + 7.3 = ? (a) 13.45 (b) 13.35 (c) 13.55 (d) 6.88
  32. 32.4.01 + 4.7 = ? (a) 8.71 (b) 8.61 (c) 4.48 (d) 8.81
  33. 33.What is the value of the digit 7 in 56.317? (a) 0.007 (b) 0.07 (c) 0.7 (d) 7
  34. 34.7.48 + 1.5 = ? (a) 9.08 (b) 8.98 (c) 8.88 (d) 7.63
  35. 35.What is the value of the digit 5 in 65.912? (a) 5 (b) 0.5 (c) 50 (d) 0.05
  36. 36.2.61 + 9.1 = ? (a) 11.81 (b) 11.61 (c) 11.71 (d) 3.52
  37. 37.What is the value of the digit 4 in 64.329? (a) 40 (b) 4 (c) 0.04 (d) 0.4
  38. 38.What is the value of the digit 5 in 59.246? (a) 0.5 (b) 5 (c) 0.05 (d) 50
  39. 39.Which is the greatest: 0.012, 0.2, 0.22, 0.166? (a) 0.012 (b) 0.2 (c) 0.22 (d) 0.166
  40. 40.Which is the smallest: 0.3, 0.098, 0.237, 0.34? (a) 0.3 (b) 0.098 (c) 0.237 (d) 0.34

Answer key

  1. 3.58
  2. 4.43
  3. 50
  4. 11.11
  5. 0.09
  6. 0.51
  7. 19.18
  8. 18.69
  9. 9.01
  10. 12.52
  11. 0.08
  12. 0.038
  13. 70
  14. 6.12
  15. 10.51
  16. 12.73
  17. 0.42
  18. 8.05
  19. 9.21
  20. 12.79
  21. 4
  22. 0.093
  23. 0.3
  24. 5.94
  25. 0.002
  26. 30
  27. 8
  28. 4.15
  29. 10.13
  30. 0.038
  31. 13.45
  32. 8.71
  33. 0.007
  34. 8.98
  35. 5
  36. 11.71
  37. 4
  38. 50
  39. 0.22
  40. 0.098

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