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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 69 · 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: 0.31, 0.3, 0.243, 0.095? (a) 0.31 (b) 0.3 (c) 0.243 (d) 0.095
  2. 2.What is the value of the digit 8 in 95.384? (a) 0.08 (b) 8 (c) 0.8 (d) 0.008
  3. 3.3.55 + 5.2 = ? (a) 4.07 (b) 8.65 (c) 8.75 (d) 8.85
  4. 4.7.28 + 5.9 = ? (a) 7.87 (b) 13.08 (c) 13.28 (d) 13.18
  5. 5.Which is the greatest: 0.276, 0.029, 0.3, 0.33? (a) 0.276 (b) 0.029 (c) 0.3 (d) 0.33
  6. 6.6.48 + 4.5 = ? (a) 10.98 (b) 10.88 (c) 6.93 (d) 11.08
  7. 7.Which is the greatest: 0.167, 0.2, 0.095, 0.29? (a) 0.167 (b) 0.2 (c) 0.095 (d) 0.29
  8. 8.What is the value of the digit 3 in 72.386? (a) 0.03 (b) 3 (c) 0.003 (d) 0.3
  9. 9.Which is the greatest: 0.46, 0.396, 0.073, 0.4? (a) 0.46 (b) 0.396 (c) 0.073 (d) 0.4
  10. 10.9.58 + 4.3 = ? (a) 13.98 (b) 13.88 (c) 10.01 (d) 13.78
  11. 11.Which is the smallest: 0.069, 0.169, 0.2, 0.29? (a) 0.069 (b) 0.169 (c) 0.2 (d) 0.29
  12. 12.9.81 + 1.3 = ? (a) 11.21 (b) 11.11 (c) 9.94 (d) 11.01
  13. 13.3.35 + 4.1 = ? (a) 7.55 (b) 7.45 (c) 7.35 (d) 3.76
  14. 14.What is the value of the digit 2 in 72.315? (a) 0.02 (b) 2 (c) 20 (d) 0.2
  15. 15.What is the value of the digit 6 in 15.986? (a) 0.6 (b) 0.006 (c) 0.06 (d) 6
  16. 16.What is the value of the digit 4 in 79.234? (a) 0.4 (b) 4 (c) 0.04 (d) 0.004
  17. 17.What is the value of the digit 2 in 24.196? (a) 20 (b) 2 (c) 0.2 (d) 0.02
  18. 18.What is the value of the digit 5 in 94.573? (a) 0.005 (b) 5 (c) 0.5 (d) 0.05
  19. 19.What is the value of the digit 1 in 27.183? (a) 0.01 (b) 0.001 (c) 0.1 (d) 1
  20. 20.Which is the greatest: 0.071, 0.8, 0.88, 0.737? (a) 0.071 (b) 0.8 (c) 0.88 (d) 0.737
  21. 21.6.28 + 7.4 = ? (a) 13.68 (b) 13.78 (c) 13.58 (d) 7.02
  22. 22.Which is the greatest: 0.65, 0.6, 0.537, 0.027? (a) 0.65 (b) 0.6 (c) 0.537 (d) 0.027
  23. 23.Which is the greatest: 0.132, 0.034, 0.24, 0.2? (a) 0.132 (b) 0.034 (c) 0.24 (d) 0.2
  24. 24.6.82 + 8.6 = ? (a) 15.42 (b) 7.68 (c) 15.32 (d) 15.52
  25. 25.8.71 + 5.1 = ? (a) 13.91 (b) 9.22 (c) 13.71 (d) 13.81
  26. 26.What is the value of the digit 3 in 43.965? (a) 0.3 (b) 30 (c) 3 (d) 0.03
  27. 27.9.02 + 2.1 = ? (a) 9.23 (b) 11.02 (c) 11.22 (d) 11.12
  28. 28.Which is the greatest: 0.52, 0.5, 0.434, 0.086? (a) 0.52 (b) 0.5 (c) 0.434 (d) 0.086
  29. 29.8.94 + 3.4 = ? (a) 9.28 (b) 12.34 (c) 12.44 (d) 12.24
  30. 30.4.53 + 3.1 = ? (a) 4.84 (b) 7.73 (c) 7.63 (d) 7.53
  31. 31.What is the value of the digit 8 in 68.934? (a) 80 (b) 8 (c) 0.8 (d) 0.08
  32. 32.2.61 + 8.7 = ? (a) 3.48 (b) 11.21 (c) 11.31 (d) 11.41
  33. 33.9.52 + 4.8 = ? (a) 10 (b) 14.32 (c) 14.42 (d) 14.22
  34. 34.8.59 + 5.5 = ? (a) 13.99 (b) 14.19 (c) 9.14 (d) 14.09
  35. 35.What is the value of the digit 4 in 28.654? (a) 0.04 (b) 0.004 (c) 4 (d) 0.4
  36. 36.Which is the smallest: 0.85, 0.743, 0.019, 0.8? (a) 0.85 (b) 0.743 (c) 0.019 (d) 0.8
  37. 37.7.33 + 3.4 = ? (a) 10.73 (b) 10.63 (c) 7.67 (d) 10.83
  38. 38.Which is the smallest: 0.35, 0.074, 0.232, 0.3? (a) 0.35 (b) 0.074 (c) 0.232 (d) 0.3
  39. 39.What is the value of the digit 6 in 76.439? (a) 60 (b) 0.6 (c) 0.06 (d) 6
  40. 40.Which is the greatest: 0.8, 0.056, 0.781, 0.82? (a) 0.8 (b) 0.056 (c) 0.781 (d) 0.82

Answer key

  1. 0.095
  2. 0.08
  3. 8.75
  4. 13.18
  5. 0.33
  6. 10.98
  7. 0.29
  8. 0.3
  9. 0.46
  10. 13.88
  11. 0.069
  12. 11.11
  13. 7.45
  14. 2
  15. 0.006
  16. 0.004
  17. 20
  18. 0.5
  19. 0.1
  20. 0.88
  21. 13.68
  22. 0.65
  23. 0.24
  24. 15.42
  25. 13.81
  26. 3
  27. 11.12
  28. 0.52
  29. 12.34
  30. 7.63
  31. 8
  32. 11.31
  33. 14.32
  34. 14.09
  35. 0.004
  36. 0.019
  37. 10.73
  38. 0.074
  39. 6
  40. 0.82

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