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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 408 · 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. 1.0.97 × 2.4 =
  2. 2.2.1 × 0.33 =
  3. 3.5.2 × 2.1 =
  4. 4.6.2 × 0.09 =
  5. 5.1.5 × 0.29 =
  6. 6.6.7 × 2.5 =
  7. 7.1.1 × 0.34 =
  8. 8.4.4 × 2.1 =
  9. 9.0.4 × 0.16 =
  10. 10.7.8 × 0.8 =
  11. 11.0.31 × 2.4 =
  12. 12.7.1 × 0.03 =
  13. 13.1.4 × 1.6 =
  14. 14.0.54 × 3.2 =
  15. 15.1.3 × 0.17 =
  16. 16.9.9 × 0.14 =
  17. 17.0.5 × 0.12 =
  18. 18.2.2 × 0.18 =
  19. 19.0.11 × 2.6 =
  20. 20.0.2 × 0.11 =
  21. 21.0.06 × 1.1 =
  22. 22.0.97 × 0.4 =
  23. 23.0.52 × 0.7 =
  24. 24.8.1 × 0.07 =
  25. 25.0.85 × 2.1 =
  26. 26.0.49 × 2.1 =
  27. 27.0.59 × 3.5 =
  28. 28.0.31 × 0.2 =
  29. 29.9.6 × 2.1 =
  30. 30.4.5 × 0.09 =
  31. 31.0.6 × 1.1 =
  32. 32.0.71 × 3.6 =
  33. 33.0.15 × 0.4 =
  34. 34.3.3 × 0.3 =
  35. 35.0.56 × 0.3 =
  36. 36.5.5 × 2.1 =
  37. 37.1.5 × 0.21 =
  38. 38.0.69 × 3.6 =
  39. 39.6.9 × 1.4 =
  40. 40.1.1 × 1.3 =

Answer key

  1. 2.328
  2. 0.693
  3. 10.92
  4. 0.558
  5. 0.435
  6. 16.75
  7. 0.374
  8. 9.24
  9. 0.064
  10. 6.24
  11. 0.744
  12. 0.213
  13. 2.24
  14. 1.728
  15. 0.221
  16. 1.386
  17. 0.06
  18. 0.396
  19. 0.286
  20. 0.022
  21. 0.066
  22. 0.388
  23. 0.364
  24. 0.567
  25. 1.785
  26. 1.029
  27. 2.065
  28. 0.062
  29. 20.16
  30. 0.405
  31. 0.66
  32. 2.556
  33. 0.06
  34. 0.99
  35. 0.168
  36. 11.55
  37. 0.315
  38. 2.484
  39. 9.66
  40. 1.43

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