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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 647 · 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. 1.0.41 × 3.3 =
  2. 2.0.55 × 2.8 =
  3. 3.0.15 × 2.1 =
  4. 4.0.13 × 2.1 =
  5. 5.5.3 × 0.6 =
  6. 6.6.9 × 0.4 =
  7. 7.0.32 × 3.9 =
  8. 8.2.3 × 1.1 =
  9. 9.3.3 × 0.9 =
  10. 10.9.8 × 0.04 =
  11. 11.2.3 × 0.8 =
  12. 12.0.26 × 1.3 =
  13. 13.0.28 × 1.9 =
  14. 14.5.1 × 3.3 =
  15. 15.1.7 × 2.7 =
  16. 16.0.99 × 3.1 =
  17. 17.1.1 × 3.8 =
  18. 18.9.1 × 0.35 =
  19. 19.7.1 × 2.7 =
  20. 20.1.6 × 0.21 =
  21. 21.0.85 × 2.3 =
  22. 22.0.73 × 3.6 =
  23. 23.0.52 × 3.8 =
  24. 24.0.05 × 1.2 =
  25. 25.0.5 × 0.11 =
  26. 26.0.74 × 2.1 =
  27. 27.0.53 × 1.2 =
  28. 28.4.1 × 0.39 =
  29. 29.1.6 × 0.2 =
  30. 30.0.5 × 0.03 =
  31. 31.3.2 × 0.24 =
  32. 32.8.1 × 0.39 =
  33. 33.5.9 × 0.21 =
  34. 34.6.1 × 2.6 =
  35. 35.0.11 × 1.2 =
  36. 36.2.5 × 1.7 =
  37. 37.9.6 × 0.28 =
  38. 38.0.38 × 3.2 =
  39. 39.7.4 × 0.31 =
  40. 40.4.3 × 3.1 =

Answer key

  1. 1.353
  2. 1.54
  3. 0.315
  4. 0.273
  5. 3.18
  6. 2.76
  7. 1.248
  8. 2.53
  9. 2.97
  10. 0.392
  11. 1.84
  12. 0.338
  13. 0.532
  14. 16.83
  15. 4.59
  16. 3.069
  17. 4.18
  18. 3.185
  19. 19.17
  20. 0.336
  21. 1.955
  22. 2.628
  23. 1.976
  24. 0.06
  25. 0.055
  26. 1.554
  27. 0.636
  28. 1.599
  29. 0.32
  30. 0.015
  31. 0.768
  32. 3.159
  33. 1.239
  34. 15.86
  35. 0.132
  36. 4.25
  37. 2.688
  38. 1.216
  39. 2.294
  40. 13.33

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