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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 491 · 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. 1.3.56 + 9.6 = ? (a) 13.06 (b) 4.52 (c) 13.16 (d) 13.26
  2. 2.What is the value of the digit 7 in 71.285? (a) 0.7 (b) 7 (c) 70 (d) 0.07
  3. 3.Which is the smallest: 0.6, 0.555, 0.063, 0.61? (a) 0.6 (b) 0.555 (c) 0.063 (d) 0.61
  4. 4.What is the value of the digit 4 in 42.593? (a) 40 (b) 0.4 (c) 4 (d) 0.04
  5. 5.What is the value of the digit 4 in 42.189? (a) 0.04 (b) 40 (c) 4 (d) 0.4
  6. 6.Which is the smallest: 0.34, 0.278, 0.012, 0.3? (a) 0.34 (b) 0.278 (c) 0.012 (d) 0.3
  7. 7.Which is the smallest: 0.43, 0.4, 0.332, 0.079? (a) 0.43 (b) 0.4 (c) 0.332 (d) 0.079
  8. 8.3.88 + 2.1 = ? (a) 5.88 (b) 6.08 (c) 5.98 (d) 4.09
  9. 9.6.21 + 7.1 = ? (a) 13.31 (b) 13.41 (c) 13.21 (d) 6.92
  10. 10.What is the value of the digit 4 in 19.874? (a) 0.004 (b) 0.04 (c) 4 (d) 0.4
  11. 11.1.01 + 9.3 = ? (a) 1.94 (b) 10.41 (c) 10.31 (d) 10.21
  12. 12.Which is the greatest: 0.7, 0.071, 0.622, 0.71? (a) 0.7 (b) 0.071 (c) 0.622 (d) 0.71
  13. 13.6.63 + 9.8 = ? (a) 16.43 (b) 7.61 (c) 16.33 (d) 16.53
  14. 14.What is the value of the digit 4 in 45.728? (a) 0.4 (b) 40 (c) 0.04 (d) 4
  15. 15.Which is the smallest: 0.044, 0.5, 0.415, 0.52? (a) 0.044 (b) 0.5 (c) 0.415 (d) 0.52
  16. 16.4.49 + 2.1 = ? (a) 6.59 (b) 6.49 (c) 6.69 (d) 4.7
  17. 17.6.71 + 9.9 = ? (a) 16.51 (b) 16.61 (c) 16.71 (d) 7.7
  18. 18.What is the value of the digit 9 in 12.869? (a) 0.9 (b) 0.09 (c) 9 (d) 0.009
  19. 19.Which is the greatest: 0.7, 0.75, 0.619, 0.029? (a) 0.7 (b) 0.75 (c) 0.619 (d) 0.029
  20. 20.Which is the greatest: 0.28, 0.024, 0.144, 0.2? (a) 0.28 (b) 0.024 (c) 0.144 (d) 0.2
  21. 21.Which is the greatest: 0.234, 0.37, 0.045, 0.3? (a) 0.234 (b) 0.37 (c) 0.045 (d) 0.3
  22. 22.3.19 + 1.2 = ? (a) 4.39 (b) 3.31 (c) 4.29 (d) 4.49
  23. 23.2.44 + 2.1 = ? (a) 4.44 (b) 4.64 (c) 4.54 (d) 2.65
  24. 24.Which is the greatest: 0.3, 0.023, 0.37, 0.246? (a) 0.3 (b) 0.023 (c) 0.37 (d) 0.246
  25. 25.7.65 + 8.2 = ? (a) 8.47 (b) 15.95 (c) 15.75 (d) 15.85
  26. 26.What is the value of the digit 6 in 65.719? (a) 0.6 (b) 0.06 (c) 6 (d) 60
  27. 27.Which is the smallest: 0.089, 0.47, 0.352, 0.4? (a) 0.089 (b) 0.47 (c) 0.352 (d) 0.4
  28. 28.What is the value of the digit 2 in 28.371? (a) 2 (b) 0.2 (c) 0.02 (d) 20
  29. 29.Which is the greatest: 0.068, 0.6, 0.62, 0.529? (a) 0.068 (b) 0.6 (c) 0.62 (d) 0.529
  30. 30.1.19 + 8.7 = ? (a) 9.99 (b) 9.79 (c) 9.89 (d) 2.06
  31. 31.Which is the smallest: 0.76, 0.026, 0.673, 0.7? (a) 0.76 (b) 0.026 (c) 0.673 (d) 0.7
  32. 32.What is the value of the digit 5 in 97.345? (a) 5 (b) 0.005 (c) 0.5 (d) 0.05
  33. 33.7.61 + 5.3 = ? (a) 12.81 (b) 12.91 (c) 13.01 (d) 8.14
  34. 34.What is the value of the digit 3 in 79.253? (a) 0.3 (b) 0.003 (c) 0.03 (d) 3
  35. 35.What is the value of the digit 1 in 16.748? (a) 0.01 (b) 0.1 (c) 10 (d) 1
  36. 36.8.09 + 2.1 = ? (a) 10.29 (b) 10.19 (c) 10.09 (d) 8.3
  37. 37.5.94 + 2.7 = ? (a) 6.21 (b) 8.74 (c) 8.54 (d) 8.64
  38. 38.Which is the smallest: 0.46, 0.4, 0.354, 0.065? (a) 0.46 (b) 0.4 (c) 0.354 (d) 0.065
  39. 39.What is the value of the digit 8 in 24.813? (a) 0.8 (b) 0.008 (c) 0.08 (d) 8
  40. 40.1.02 + 5.6 = ? (a) 6.62 (b) 1.58 (c) 6.52 (d) 6.72

Answer key

  1. 13.16
  2. 70
  3. 0.063
  4. 40
  5. 40
  6. 0.012
  7. 0.079
  8. 5.98
  9. 13.31
  10. 0.004
  11. 10.31
  12. 0.71
  13. 16.43
  14. 40
  15. 0.044
  16. 6.59
  17. 16.61
  18. 0.009
  19. 0.75
  20. 0.28
  21. 0.37
  22. 4.39
  23. 4.54
  24. 0.37
  25. 15.85
  26. 60
  27. 0.089
  28. 20
  29. 0.62
  30. 9.89
  31. 0.026
  32. 0.005
  33. 12.91
  34. 0.003
  35. 10
  36. 10.19
  37. 8.64
  38. 0.065
  39. 0.8
  40. 6.62

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