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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 427 · 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. 1.0.17 × 3.3 =
  2. 2.7.5 × 3.3 =
  3. 3.7.6 × 0.07 =
  4. 4.7.6 × 0.36 =
  5. 5.3.1 × 2.1 =
  6. 6.0.55 × 1.3 =
  7. 7.0.7 × 0.2 =
  8. 8.0.68 × 1.1 =
  9. 9.5.1 × 0.29 =
  10. 10.4.2 × 0.26 =
  11. 11.9.2 × 0.16 =
  12. 12.0.41 × 3.7 =
  13. 13.9.4 × 0.31 =
  14. 14.0.48 × 3.4 =
  15. 15.0.19 × 2.8 =
  16. 16.0.89 × 3.1 =
  17. 17.9.2 × 0.34 =
  18. 18.0.71 × 2.9 =
  19. 19.0.81 × 3.5 =
  20. 20.0.21 × 0.4 =
  21. 21.0.44 × 3.9 =
  22. 22.0.68 × 0.6 =
  23. 23.4.1 × 0.17 =
  24. 24.0.89 × 0.3 =
  25. 25.0.22 × 0.5 =
  26. 26.0.53 × 3.5 =
  27. 27.0.53 × 2.1 =
  28. 28.0.8 × 1.1 =
  29. 29.0.68 × 1.9 =
  30. 30.0.12 × 2.1 =
  31. 31.7.4 × 2.1 =
  32. 32.8.1 × 0.11 =
  33. 33.0.21 × 2.4 =
  34. 34.0.63 × 0.9 =
  35. 35.7.4 × 2.7 =
  36. 36.8.1 × 1.7 =
  37. 37.0.91 × 0.2 =
  38. 38.0.5 × 0.26 =
  39. 39.0.9 × 1.5 =
  40. 40.0.85 × 2.8 =

Answer key

  1. 0.561
  2. 24.75
  3. 0.532
  4. 2.736
  5. 6.51
  6. 0.715
  7. 0.14
  8. 0.748
  9. 1.479
  10. 1.092
  11. 1.472
  12. 1.517
  13. 2.914
  14. 1.632
  15. 0.532
  16. 2.759
  17. 3.128
  18. 2.059
  19. 2.835
  20. 0.084
  21. 1.716
  22. 0.408
  23. 0.697
  24. 0.267
  25. 0.11
  26. 1.855
  27. 1.113
  28. 0.88
  29. 1.292
  30. 0.252
  31. 15.54
  32. 0.891
  33. 0.504
  34. 0.567
  35. 19.98
  36. 13.77
  37. 0.182
  38. 0.13
  39. 1.35
  40. 2.38

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