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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 551 · 40 questions
TalentJR

The fast method (Count the places): Forget the points and multiply the whole numbers: 2.5 × 1.4 → 25 × 14 = 350. Count the decimal places in both numbers: 1 + 1 = 2. Put the point that many places from the right: 3.50 — then drop the 0 at the end: 3.5.

NameDateTime takenScore ___ / 40
  1. 1.0.14 × 1.8 =
  2. 2.2.5 × 1.2 =
  3. 3.0.42 × 0.5 =
  4. 4.0.46 × 3.1 =
  5. 5.0.95 × 3.8 =
  6. 6.0.21 × 1.9 =
  7. 7.8.3 × 0.14 =
  8. 8.0.46 × 1.1 =
  9. 9.0.63 × 1.3 =
  10. 10.7.1 × 1.9 =
  11. 11.0.17 × 1.9 =
  12. 12.0.81 × 1.8 =
  13. 13.0.41 × 3.1 =
  14. 14.0.2 × 2.7 =
  15. 15.7.9 × 0.2 =
  16. 16.0.02 × 0.9 =
  17. 17.0.27 × 1.6 =
  18. 18.0.31 × 0.9 =
  19. 19.5.1 × 0.08 =
  20. 20.0.71 × 2.5 =
  21. 21.3.1 × 0.11 =
  22. 22.0.71 × 1.7 =
  23. 23.8.5 × 0.34 =
  24. 24.0.91 × 2.2 =
  25. 25.7.8 × 3.8 =
  26. 26.0.71 × 1.3 =
  27. 27.9.8 × 1.4 =
  28. 28.9.8 × 0.23 =
  29. 29.6.6 × 0.09 =
  30. 30.8.7 × 0.09 =
  31. 31.2.7 × 0.9 =
  32. 32.6.2 × 0.11 =
  33. 33.2.8 × 0.28 =
  34. 34.0.51 × 1.5 =
  35. 35.0.14 × 2.9 =
  36. 36.0.91 × 3.6 =
  37. 37.3.1 × 3.3 =
  38. 38.0.93 × 1.3 =
  39. 39.0.9 × 0.08 =
  40. 40.0.02 × 0.5 =

Answer key

  1. 0.252
  2. 3
  3. 0.21
  4. 1.426
  5. 3.61
  6. 0.399
  7. 1.162
  8. 0.506
  9. 0.819
  10. 13.49
  11. 0.323
  12. 1.458
  13. 1.271
  14. 0.54
  15. 1.58
  16. 0.018
  17. 0.432
  18. 0.279
  19. 0.408
  20. 1.775
  21. 0.341
  22. 1.207
  23. 2.89
  24. 2.002
  25. 29.64
  26. 0.923
  27. 13.72
  28. 2.254
  29. 0.594
  30. 0.783
  31. 2.43
  32. 0.682
  33. 0.784
  34. 0.765
  35. 0.406
  36. 3.276
  37. 10.23
  38. 1.209
  39. 0.072
  40. 0.01

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