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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 598 · 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. 1.0.51 × 2.3 =
  2. 2.0.93 × 0.9 =
  3. 3.0.87 × 1.9 =
  4. 4.0.21 × 2.3 =
  5. 5.0.91 × 1.8 =
  6. 6.1.5 × 2.1 =
  7. 7.1.2 × 3.1 =
  8. 8.2.6 × 0.25 =
  9. 9.0.08 × 2.3 =
  10. 10.0.22 × 1.8 =
  11. 11.0.07 × 0.9 =
  12. 12.0.52 × 2.2 =
  13. 13.0.24 × 3.8 =
  14. 14.0.63 × 1.1 =
  15. 15.0.4 × 0.5 =
  16. 16.1.1 × 1.8 =
  17. 17.0.21 × 0.9 =
  18. 18.0.97 × 0.5 =
  19. 19.2.7 × 0.03 =
  20. 20.3.4 × 2.5 =
  21. 21.0.35 × 2.2 =
  22. 22.0.8 × 0.38 =
  23. 23.6.8 × 0.13 =
  24. 24.9.7 × 0.14 =
  25. 25.0.69 × 3.1 =
  26. 26.0.33 × 3.1 =
  27. 27.3.9 × 0.8 =
  28. 28.3.1 × 0.04 =
  29. 29.0.6 × 0.5 =
  30. 30.7.5 × 1.9 =
  31. 31.7.7 × 0.7 =
  32. 32.1.9 × 0.8 =
  33. 33.2.2 × 0.16 =
  34. 34.0.9 × 2.5 =
  35. 35.1.2 × 0.4 =
  36. 36.9.1 × 0.29 =
  37. 37.3.3 × 0.27 =
  38. 38.1.4 × 0.07 =
  39. 39.0.57 × 3.9 =
  40. 40.0.17 × 1.9 =

Answer key

  1. 1.173
  2. 0.837
  3. 1.653
  4. 0.483
  5. 1.638
  6. 3.15
  7. 3.72
  8. 0.65
  9. 0.184
  10. 0.396
  11. 0.063
  12. 1.144
  13. 0.912
  14. 0.693
  15. 0.2
  16. 1.98
  17. 0.189
  18. 0.485
  19. 0.081
  20. 8.5
  21. 0.77
  22. 0.304
  23. 0.884
  24. 1.358
  25. 2.139
  26. 1.023
  27. 3.12
  28. 0.124
  29. 0.3
  30. 14.25
  31. 5.39
  32. 1.52
  33. 0.352
  34. 2.25
  35. 0.48
  36. 2.639
  37. 0.891
  38. 0.098
  39. 2.223
  40. 0.323

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