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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 179 · 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. 1.5.8 × 1.8 =
  2. 2.0.2 × 0.19 =
  3. 3.0.67 × 1.7 =
  4. 4.5.8 × 3.6 =
  5. 5.0.08 × 1.5 =
  6. 6.4.8 × 0.22 =
  7. 7.8.6 × 1.4 =
  8. 8.0.38 × 3.1 =
  9. 9.0.19 × 3.9 =
  10. 10.8.1 × 0.21 =
  11. 11.5.6 × 0.7 =
  12. 12.0.65 × 1.3 =
  13. 13.3.3 × 0.38 =
  14. 14.3.2 × 0.9 =
  15. 15.0.32 × 2.3 =
  16. 16.5.8 × 1.2 =
  17. 17.7.9 × 0.35 =
  18. 18.0.97 × 0.6 =
  19. 19.4.6 × 0.21 =
  20. 20.2.1 × 1.9 =
  21. 21.9.6 × 0.18 =
  22. 22.0.59 × 1.1 =
  23. 23.7.7 × 0.03 =
  24. 24.6.9 × 0.14 =
  25. 25.0.76 × 0.3 =
  26. 26.0.48 × 3.3 =
  27. 27.0.78 × 1.4 =
  28. 28.1.3 × 0.24 =
  29. 29.5.9 × 0.16 =
  30. 30.2.1 × 0.5 =
  31. 31.4.2 × 0.03 =
  32. 32.8.3 × 2.3 =
  33. 33.0.12 × 1.2 =
  34. 34.0.37 × 1.7 =
  35. 35.7.6 × 3.3 =
  36. 36.0.51 × 2.6 =
  37. 37.0.26 × 2.9 =
  38. 38.8.8 × 0.2 =
  39. 39.2.9 × 2.3 =
  40. 40.0.78 × 2.7 =

Answer key

  1. 10.44
  2. 0.038
  3. 1.139
  4. 20.88
  5. 0.12
  6. 1.056
  7. 12.04
  8. 1.178
  9. 0.741
  10. 1.701
  11. 3.92
  12. 0.845
  13. 1.254
  14. 2.88
  15. 0.736
  16. 6.96
  17. 2.765
  18. 0.582
  19. 0.966
  20. 3.99
  21. 1.728
  22. 0.649
  23. 0.231
  24. 0.966
  25. 0.228
  26. 1.584
  27. 1.092
  28. 0.312
  29. 0.944
  30. 1.05
  31. 0.126
  32. 19.09
  33. 0.144
  34. 0.629
  35. 25.08
  36. 1.326
  37. 0.754
  38. 1.76
  39. 6.67
  40. 2.106

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