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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 918 · 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: 0.43, 0.4, 0.013, 0.346? (a) 0.43 (b) 0.4 (c) 0.013 (d) 0.346
  2. 2.7.32 + 6.3 = ? (a) 13.72 (b) 13.52 (c) 7.95 (d) 13.62
  3. 3.9.06 + 7.1 = ? (a) 9.77 (b) 16.16 (c) 16.06 (d) 16.26
  4. 4.Which is the greatest: 0.098, 0.46, 0.4, 0.399? (a) 0.098 (b) 0.46 (c) 0.4 (d) 0.399
  5. 5.What is the value of the digit 3 in 29.385? (a) 3 (b) 0.03 (c) 0.003 (d) 0.3
  6. 6.What is the value of the digit 3 in 39.281? (a) 3 (b) 30 (c) 0.03 (d) 0.3
  7. 7.What is the value of the digit 7 in 52.741? (a) 0.07 (b) 7 (c) 0.007 (d) 0.7
  8. 8.Which is the greatest: 0.713, 0.087, 0.8, 0.83? (a) 0.713 (b) 0.087 (c) 0.8 (d) 0.83
  9. 9.Which is the greatest: 0.4, 0.49, 0.372, 0.069? (a) 0.4 (b) 0.49 (c) 0.372 (d) 0.069
  10. 10.4.31 + 9.1 = ? (a) 13.31 (b) 13.51 (c) 13.41 (d) 5.22
  11. 11.Which is the greatest: 0.61, 0.512, 0.014, 0.6? (a) 0.61 (b) 0.512 (c) 0.014 (d) 0.6
  12. 12.7.25 + 3.7 = ? (a) 11.05 (b) 10.85 (c) 7.62 (d) 10.95
  13. 13.What is the value of the digit 9 in 32.198? (a) 9 (b) 0.9 (c) 0.09 (d) 0.009
  14. 14.What is the value of the digit 8 in 48.591? (a) 8 (b) 80 (c) 0.08 (d) 0.8
  15. 15.Which is the smallest: 0.53, 0.436, 0.5, 0.065? (a) 0.53 (b) 0.436 (c) 0.5 (d) 0.065
  16. 16.What is the value of the digit 6 in 51.684? (a) 0.06 (b) 0.006 (c) 0.6 (d) 6
  17. 17.Which is the greatest: 0.75, 0.7, 0.019, 0.695? (a) 0.75 (b) 0.7 (c) 0.019 (d) 0.695
  18. 18.2.44 + 2.1 = ? (a) 4.64 (b) 2.65 (c) 4.54 (d) 4.44
  19. 19.What is the value of the digit 8 in 82.973? (a) 0.8 (b) 80 (c) 0.08 (d) 8
  20. 20.What is the value of the digit 1 in 17.495? (a) 0.01 (b) 10 (c) 1 (d) 0.1
  21. 21.Which is the greatest: 0.079, 0.319, 0.47, 0.4? (a) 0.079 (b) 0.319 (c) 0.47 (d) 0.4
  22. 22.4.01 + 3.2 = ? (a) 7.21 (b) 7.31 (c) 4.33 (d) 7.11
  23. 23.What is the value of the digit 4 in 14.283? (a) 0.4 (b) 40 (c) 0.04 (d) 4
  24. 24.What is the value of the digit 5 in 35.298? (a) 0.05 (b) 5 (c) 50 (d) 0.5
  25. 25.What is the value of the digit 9 in 23.749? (a) 0.9 (b) 9 (c) 0.09 (d) 0.009
  26. 26.Which is the smallest: 0.296, 0.37, 0.052, 0.3? (a) 0.296 (b) 0.37 (c) 0.052 (d) 0.3
  27. 27.1.11 + 7.1 = ? (a) 8.21 (b) 8.31 (c) 8.11 (d) 1.82
  28. 28.Which is the smallest: 0.8, 0.83, 0.092, 0.797? (a) 0.8 (b) 0.83 (c) 0.092 (d) 0.797
  29. 29.What is the value of the digit 1 in 27.516? (a) 0.01 (b) 0.001 (c) 0.1 (d) 1
  30. 30.Which is the smallest: 0.6, 0.63, 0.521, 0.073? (a) 0.6 (b) 0.63 (c) 0.521 (d) 0.073
  31. 31.Which is the greatest: 0.48, 0.312, 0.049, 0.4? (a) 0.48 (b) 0.312 (c) 0.049 (d) 0.4
  32. 32.Which is the greatest: 0.2, 0.111, 0.068, 0.22? (a) 0.2 (b) 0.111 (c) 0.068 (d) 0.22
  33. 33.7.55 + 5.9 = ? (a) 13.55 (b) 13.35 (c) 8.14 (d) 13.45
  34. 34.9.12 + 7.3 = ? (a) 16.32 (b) 16.52 (c) 9.85 (d) 16.42
  35. 35.Which is the greatest: 0.82, 0.798, 0.8, 0.041? (a) 0.82 (b) 0.798 (c) 0.8 (d) 0.041
  36. 36.What is the value of the digit 7 in 34.769? (a) 7 (b) 0.07 (c) 0.7 (d) 0.007
  37. 37.7.11 + 1.3 = ? (a) 7.24 (b) 8.41 (c) 8.51 (d) 8.31
  38. 38.What is the value of the digit 7 in 72.159? (a) 7 (b) 70 (c) 0.07 (d) 0.7
  39. 39.What is the value of the digit 8 in 52.168? (a) 0.008 (b) 8 (c) 0.8 (d) 0.08
  40. 40.What is the value of the digit 9 in 91.378? (a) 9 (b) 0.09 (c) 90 (d) 0.9

Answer key

  1. 0.43
  2. 13.62
  3. 16.16
  4. 0.46
  5. 0.3
  6. 30
  7. 0.7
  8. 0.83
  9. 0.49
  10. 13.41
  11. 0.61
  12. 10.95
  13. 0.09
  14. 8
  15. 0.065
  16. 0.6
  17. 0.75
  18. 4.54
  19. 80
  20. 10
  21. 0.47
  22. 7.21
  23. 4
  24. 5
  25. 0.009
  26. 0.052
  27. 8.21
  28. 0.092
  29. 0.01
  30. 0.073
  31. 0.48
  32. 0.22
  33. 13.45
  34. 16.42
  35. 0.82
  36. 0.7
  37. 8.41
  38. 70
  39. 0.008
  40. 90

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