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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 583 · 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. 1.0.28 × 3.4 =
  2. 2.3.4 × 0.4 =
  3. 3.1.8 × 3.3 =
  4. 4.7.7 × 2.3 =
  5. 5.0.4 × 0.36 =
  6. 6.1.1 × 1.5 =
  7. 7.8.6 × 0.3 =
  8. 8.7.8 × 0.6 =
  9. 9.0.34 × 1.1 =
  10. 10.0.13 × 3.3 =
  11. 11.0.3 × 1.5 =
  12. 12.8.6 × 0.8 =
  13. 13.3.2 × 0.6 =
  14. 14.0.88 × 2.5 =
  15. 15.5.5 × 3.7 =
  16. 16.6.5 × 0.2 =
  17. 17.2.4 × 0.04 =
  18. 18.5.3 × 0.07 =
  19. 19.6.8 × 0.31 =
  20. 20.3.1 × 2.8 =
  21. 21.9.7 × 3.1 =
  22. 22.5.2 × 0.05 =
  23. 23.5.1 × 0.27 =
  24. 24.0.7 × 2.9 =
  25. 25.7.3 × 3.1 =
  26. 26.2.5 × 1.1 =
  27. 27.7.8 × 2.8 =
  28. 28.1.9 × 0.28 =
  29. 29.0.4 × 1.5 =
  30. 30.2.8 × 2.9 =
  31. 31.6.3 × 2.4 =
  32. 32.9.7 × 0.28 =
  33. 33.9.9 × 0.6 =
  34. 34.8.8 × 0.29 =
  35. 35.0.41 × 2.8 =
  36. 36.4.8 × 0.34 =
  37. 37.0.3 × 0.05 =
  38. 38.1.8 × 0.31 =
  39. 39.0.12 × 1.1 =
  40. 40.9.8 × 0.4 =

Answer key

  1. 0.952
  2. 1.36
  3. 5.94
  4. 17.71
  5. 0.144
  6. 1.65
  7. 2.58
  8. 4.68
  9. 0.374
  10. 0.429
  11. 0.45
  12. 6.88
  13. 1.92
  14. 2.2
  15. 20.35
  16. 1.3
  17. 0.096
  18. 0.371
  19. 2.108
  20. 8.68
  21. 30.07
  22. 0.26
  23. 1.377
  24. 2.03
  25. 22.63
  26. 2.75
  27. 21.84
  28. 0.532
  29. 0.6
  30. 8.12
  31. 15.12
  32. 2.716
  33. 5.94
  34. 2.552
  35. 1.148
  36. 1.632
  37. 0.015
  38. 0.558
  39. 0.132
  40. 3.92

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