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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 702 · 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. 1.9.5 × 1.3 =
  2. 2.9.4 × 0.21 =
  3. 3.0.15 × 0.7 =
  4. 4.6.5 × 2.1 =
  5. 5.0.36 × 1.2 =
  6. 6.2.1 × 0.21 =
  7. 7.0.2 × 0.23 =
  8. 8.0.99 × 3.7 =
  9. 9.0.11 × 1.8 =
  10. 10.7.9 × 2.6 =
  11. 11.2.6 × 3.6 =
  12. 12.0.86 × 0.3 =
  13. 13.0.17 × 3.5 =
  14. 14.0.82 × 0.2 =
  15. 15.7.4 × 0.22 =
  16. 16.7.4 × 2.9 =
  17. 17.0.67 × 1.7 =
  18. 18.0.45 × 2.4 =
  19. 19.0.8 × 0.5 =
  20. 20.8.8 × 3.6 =
  21. 21.0.4 × 0.09 =
  22. 22.0.49 × 1.1 =
  23. 23.0.31 × 1.2 =
  24. 24.0.15 × 3.6 =
  25. 25.7.2 × 0.03 =
  26. 26.0.39 × 3.1 =
  27. 27.0.71 × 1.1 =
  28. 28.0.53 × 2.4 =
  29. 29.3.4 × 0.23 =
  30. 30.0.23 × 2.6 =
  31. 31.6.9 × 3.8 =
  32. 32.9.2 × 0.29 =
  33. 33.9.4 × 0.29 =
  34. 34.8.8 × 0.21 =
  35. 35.0.64 × 2.2 =
  36. 36.9.7 × 0.09 =
  37. 37.9.4 × 2.8 =
  38. 38.7.8 × 0.38 =
  39. 39.0.48 × 3.1 =
  40. 40.9.6 × 3.2 =

Answer key

  1. 12.35
  2. 1.974
  3. 0.105
  4. 13.65
  5. 0.432
  6. 0.441
  7. 0.046
  8. 3.663
  9. 0.198
  10. 20.54
  11. 9.36
  12. 0.258
  13. 0.595
  14. 0.164
  15. 1.628
  16. 21.46
  17. 1.139
  18. 1.08
  19. 0.4
  20. 31.68
  21. 0.036
  22. 0.539
  23. 0.372
  24. 0.54
  25. 0.216
  26. 1.209
  27. 0.781
  28. 1.272
  29. 0.782
  30. 0.598
  31. 26.22
  32. 2.668
  33. 2.726
  34. 1.848
  35. 1.408
  36. 0.873
  37. 26.32
  38. 2.964
  39. 1.488
  40. 30.72

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