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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 449 · 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. 1.0.59 × 0.8 =
  2. 2.0.31 × 0.9 =
  3. 3.5.3 × 0.31 =
  4. 4.0.85 × 3.9 =
  5. 5.2.6 × 0.28 =
  6. 6.0.22 × 2.8 =
  7. 7.9.1 × 0.21 =
  8. 8.0.67 × 1.4 =
  9. 9.9.5 × 3.1 =
  10. 10.2.4 × 0.26 =
  11. 11.0.92 × 1.8 =
  12. 12.6.7 × 0.6 =
  13. 13.1.2 × 0.34 =
  14. 14.0.81 × 0.3 =
  15. 15.5.7 × 0.05 =
  16. 16.0.05 × 1.8 =
  17. 17.6.1 × 1.5 =
  18. 18.0.39 × 2.7 =
  19. 19.6.9 × 1.3 =
  20. 20.2.1 × 0.04 =
  21. 21.0.16 × 1.7 =
  22. 22.1.7 × 2.1 =
  23. 23.0.33 × 2.6 =
  24. 24.6.3 × 0.06 =
  25. 25.0.22 × 3.3 =
  26. 26.0.67 × 0.9 =
  27. 27.5.5 × 0.06 =
  28. 28.0.12 × 0.2 =
  29. 29.0.57 × 1.6 =
  30. 30.0.9 × 0.03 =
  31. 31.0.24 × 3.2 =
  32. 32.2.8 × 0.08 =
  33. 33.5.6 × 3.8 =
  34. 34.9.2 × 0.02 =
  35. 35.1.1 × 3.1 =
  36. 36.0.96 × 2.6 =
  37. 37.5.5 × 2.4 =
  38. 38.1.5 × 1.8 =
  39. 39.0.45 × 0.6 =
  40. 40.0.48 × 2.8 =

Answer key

  1. 0.472
  2. 0.279
  3. 1.643
  4. 3.315
  5. 0.728
  6. 0.616
  7. 1.911
  8. 0.938
  9. 29.45
  10. 0.624
  11. 1.656
  12. 4.02
  13. 0.408
  14. 0.243
  15. 0.285
  16. 0.09
  17. 9.15
  18. 1.053
  19. 8.97
  20. 0.084
  21. 0.272
  22. 3.57
  23. 0.858
  24. 0.378
  25. 0.726
  26. 0.603
  27. 0.33
  28. 0.024
  29. 0.912
  30. 0.027
  31. 0.768
  32. 0.224
  33. 21.28
  34. 0.184
  35. 3.41
  36. 2.496
  37. 13.2
  38. 2.7
  39. 0.27
  40. 1.344

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