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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 580 · 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. 1.6.4 × 0.02 =
  2. 2.0.81 × 3.6 =
  3. 3.0.15 × 1.5 =
  4. 4.1.4 × 0.9 =
  5. 5.0.24 × 2.3 =
  6. 6.4.4 × 3.8 =
  7. 7.0.48 × 1.9 =
  8. 8.4.9 × 1.3 =
  9. 9.2.1 × 1.1 =
  10. 10.3.9 × 0.21 =
  11. 11.0.98 × 2.1 =
  12. 12.0.74 × 0.6 =
  13. 13.5.1 × 0.25 =
  14. 14.7.8 × 0.14 =
  15. 15.0.48 × 0.2 =
  16. 16.0.61 × 1.1 =
  17. 17.4.8 × 0.4 =
  18. 18.8.4 × 3.1 =
  19. 19.0.67 × 0.9 =
  20. 20.9.9 × 1.4 =
  21. 21.0.21 × 0.6 =
  22. 22.1.8 × 0.2 =
  23. 23.5.6 × 0.14 =
  24. 24.0.2 × 1.8 =
  25. 25.1.9 × 0.32 =
  26. 26.4.8 × 0.28 =
  27. 27.5.4 × 1.5 =
  28. 28.9.7 × 0.9 =
  29. 29.0.92 × 0.2 =
  30. 30.0.74 × 3.1 =
  31. 31.0.62 × 3.8 =
  32. 32.3.3 × 1.5 =
  33. 33.0.44 × 2.3 =
  34. 34.7.8 × 0.32 =
  35. 35.0.81 × 0.3 =
  36. 36.1.7 × 2.6 =
  37. 37.1.3 × 0.21 =
  38. 38.2.2 × 2.2 =
  39. 39.5.9 × 1.2 =
  40. 40.7.5 × 2.2 =

Answer key

  1. 0.128
  2. 2.916
  3. 0.225
  4. 1.26
  5. 0.552
  6. 16.72
  7. 0.912
  8. 6.37
  9. 2.31
  10. 0.819
  11. 2.058
  12. 0.444
  13. 1.275
  14. 1.092
  15. 0.096
  16. 0.671
  17. 1.92
  18. 26.04
  19. 0.603
  20. 13.86
  21. 0.126
  22. 0.36
  23. 0.784
  24. 0.36
  25. 0.608
  26. 1.344
  27. 8.1
  28. 8.73
  29. 0.184
  30. 2.294
  31. 2.356
  32. 4.95
  33. 1.012
  34. 2.496
  35. 0.243
  36. 4.42
  37. 0.273
  38. 4.84
  39. 7.08
  40. 16.5

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