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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 47 · 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. 1.0.11 × 0.6 =
  2. 2.1.5 × 0.36 =
  3. 3.0.47 × 2.1 =
  4. 4.0.11 × 1.6 =
  5. 5.8.4 × 0.11 =
  6. 6.3.3 × 0.06 =
  7. 7.8.5 × 3.5 =
  8. 8.0.71 × 1.7 =
  9. 9.0.3 × 0.27 =
  10. 10.0.72 × 0.3 =
  11. 11.9.1 × 3.4 =
  12. 12.3.2 × 0.32 =
  13. 13.0.12 × 3.6 =
  14. 14.0.28 × 3.1 =
  15. 15.9.2 × 1.9 =
  16. 16.0.87 × 2.4 =
  17. 17.0.58 × 0.8 =
  18. 18.1.1 × 2.6 =
  19. 19.8.1 × 1.6 =
  20. 20.0.9 × 2.7 =
  21. 21.0.53 × 2.2 =
  22. 22.7.6 × 1.1 =
  23. 23.2.1 × 0.03 =
  24. 24.0.25 × 0.8 =
  25. 25.6.1 × 2.1 =
  26. 26.2.7 × 0.09 =
  27. 27.0.61 × 2.8 =
  28. 28.6.9 × 1.2 =
  29. 29.0.07 × 2.6 =
  30. 30.5.4 × 0.12 =
  31. 31.0.42 × 2.3 =
  32. 32.1.1 × 0.16 =
  33. 33.0.44 × 0.2 =
  34. 34.1.4 × 2.8 =
  35. 35.0.47 × 3.1 =
  36. 36.7.6 × 0.31 =
  37. 37.0.19 × 1.1 =
  38. 38.0.4 × 0.05 =
  39. 39.0.35 × 3.1 =
  40. 40.2.1 × 2.2 =

Answer key

  1. 0.066
  2. 0.54
  3. 0.987
  4. 0.176
  5. 0.924
  6. 0.198
  7. 29.75
  8. 1.207
  9. 0.081
  10. 0.216
  11. 30.94
  12. 1.024
  13. 0.432
  14. 0.868
  15. 17.48
  16. 2.088
  17. 0.464
  18. 2.86
  19. 12.96
  20. 2.43
  21. 1.166
  22. 8.36
  23. 0.063
  24. 0.2
  25. 12.81
  26. 0.243
  27. 1.708
  28. 8.28
  29. 0.182
  30. 0.648
  31. 0.966
  32. 0.176
  33. 0.088
  34. 3.92
  35. 1.457
  36. 2.356
  37. 0.209
  38. 0.02
  39. 1.085
  40. 4.62

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