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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 653 · 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. 1.0.47 × 3.4 =
  2. 2.0.48 × 3.7 =
  3. 3.4.3 × 0.9 =
  4. 4.9.9 × 1.4 =
  5. 5.9.6 × 0.19 =
  6. 6.3.4 × 0.37 =
  7. 7.6.6 × 0.35 =
  8. 8.0.81 × 3.6 =
  9. 9.5.9 × 0.03 =
  10. 10.5.6 × 1.1 =
  11. 11.5.8 × 0.03 =
  12. 12.0.41 × 2.1 =
  13. 13.0.95 × 0.9 =
  14. 14.0.7 × 0.3 =
  15. 15.7.6 × 2.1 =
  16. 16.0.02 × 2.2 =
  17. 17.4.1 × 0.03 =
  18. 18.0.9 × 0.11 =
  19. 19.0.11 × 2.9 =
  20. 20.0.21 × 1.1 =
  21. 21.0.92 × 1.1 =
  22. 22.5.3 × 0.12 =
  23. 23.0.34 × 0.9 =
  24. 24.6.3 × 0.14 =
  25. 25.7.7 × 3.5 =
  26. 26.0.33 × 0.3 =
  27. 27.3.1 × 0.03 =
  28. 28.6.9 × 0.9 =
  29. 29.0.58 × 1.2 =
  30. 30.0.6 × 3.2 =
  31. 31.0.34 × 3.3 =
  32. 32.5.3 × 3.9 =
  33. 33.1.6 × 0.14 =
  34. 34.0.81 × 0.9 =
  35. 35.2.3 × 0.24 =
  36. 36.5.9 × 3.5 =
  37. 37.0.21 × 1.1 =
  38. 38.9.2 × 0.37 =
  39. 39.4.1 × 1.7 =
  40. 40.1.1 × 0.37 =

Answer key

  1. 1.598
  2. 1.776
  3. 3.87
  4. 13.86
  5. 1.824
  6. 1.258
  7. 2.31
  8. 2.916
  9. 0.177
  10. 6.16
  11. 0.174
  12. 0.861
  13. 0.855
  14. 0.21
  15. 15.96
  16. 0.044
  17. 0.123
  18. 0.099
  19. 0.319
  20. 0.231
  21. 1.012
  22. 0.636
  23. 0.306
  24. 0.882
  25. 26.95
  26. 0.099
  27. 0.093
  28. 6.21
  29. 0.696
  30. 1.92
  31. 1.122
  32. 20.67
  33. 0.224
  34. 0.729
  35. 0.552
  36. 20.65
  37. 0.231
  38. 3.404
  39. 6.97
  40. 0.407

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