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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 143 · 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. 1.0.73 × 2.3 =
  2. 2.0.06 × 0.7 =
  3. 3.0.48 × 1.4 =
  4. 4.5.8 × 0.37 =
  5. 5.0.54 × 2.2 =
  6. 6.2.1 × 1.8 =
  7. 7.0.22 × 3.1 =
  8. 8.4.3 × 3.1 =
  9. 9.0.99 × 2.7 =
  10. 10.0.61 × 3.2 =
  11. 11.9.9 × 0.31 =
  12. 12.0.97 × 2.6 =
  13. 13.0.19 × 1.6 =
  14. 14.0.61 × 1.1 =
  15. 15.5.2 × 1.6 =
  16. 16.0.98 × 0.2 =
  17. 17.8.9 × 0.7 =
  18. 18.2.8 × 2.6 =
  19. 19.0.31 × 2.6 =
  20. 20.0.11 × 3.9 =
  21. 21.1.1 × 0.12 =
  22. 22.0.41 × 1.2 =
  23. 23.0.5 × 0.31 =
  24. 24.0.55 × 2.5 =
  25. 25.0.05 × 3.8 =
  26. 26.0.86 × 0.8 =
  27. 27.0.5 × 0.22 =
  28. 28.4.7 × 0.14 =
  29. 29.0.41 × 0.7 =
  30. 30.0.23 × 1.8 =
  31. 31.3.9 × 2.9 =
  32. 32.0.72 × 0.9 =
  33. 33.0.57 × 0.7 =
  34. 34.4.4 × 0.03 =
  35. 35.5.1 × 0.5 =
  36. 36.0.58 × 2.5 =
  37. 37.4.5 × 0.18 =
  38. 38.1.9 × 0.13 =
  39. 39.0.94 × 1.3 =
  40. 40.3.7 × 0.9 =

Answer key

  1. 1.679
  2. 0.042
  3. 0.672
  4. 2.146
  5. 1.188
  6. 3.78
  7. 0.682
  8. 13.33
  9. 2.673
  10. 1.952
  11. 3.069
  12. 2.522
  13. 0.304
  14. 0.671
  15. 8.32
  16. 0.196
  17. 6.23
  18. 7.28
  19. 0.806
  20. 0.429
  21. 0.132
  22. 0.492
  23. 0.155
  24. 1.375
  25. 0.19
  26. 0.688
  27. 0.11
  28. 0.658
  29. 0.287
  30. 0.414
  31. 11.31
  32. 0.648
  33. 0.399
  34. 0.132
  35. 2.55
  36. 1.45
  37. 0.81
  38. 0.247
  39. 1.222
  40. 3.33

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