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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 506 · 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. 1.0.42 × 3.1 =
  2. 2.0.08 × 1.1 =
  3. 3.1.3 × 0.7 =
  4. 4.4.4 × 1.1 =
  5. 5.0.08 × 3.4 =
  6. 6.0.29 × 2.6 =
  7. 7.0.13 × 2.3 =
  8. 8.4.5 × 0.2 =
  9. 9.1.4 × 1.2 =
  10. 10.1.6 × 1.1 =
  11. 11.0.31 × 3.3 =
  12. 12.0.11 × 1.4 =
  13. 13.7.7 × 1.6 =
  14. 14.0.14 × 2.7 =
  15. 15.0.91 × 2.4 =
  16. 16.7.6 × 0.34 =
  17. 17.3.9 × 0.07 =
  18. 18.8.4 × 0.11 =
  19. 19.0.17 × 2.1 =
  20. 20.4.7 × 2.9 =
  21. 21.5.1 × 2.8 =
  22. 22.0.88 × 2.1 =
  23. 23.0.62 × 2.1 =
  24. 24.6.4 × 3.9 =
  25. 25.2.9 × 0.17 =
  26. 26.3.7 × 0.12 =
  27. 27.0.21 × 1.7 =
  28. 28.7.7 × 0.5 =
  29. 29.0.15 × 1.6 =
  30. 30.9.5 × 0.09 =
  31. 31.0.64 × 1.3 =
  32. 32.4.2 × 0.02 =
  33. 33.0.76 × 2.3 =
  34. 34.1.9 × 0.2 =
  35. 35.0.85 × 1.8 =
  36. 36.4.9 × 1.9 =
  37. 37.3.7 × 0.16 =
  38. 38.5.6 × 0.15 =
  39. 39.8.6 × 2.1 =
  40. 40.0.21 × 3.1 =

Answer key

  1. 1.302
  2. 0.088
  3. 0.91
  4. 4.84
  5. 0.272
  6. 0.754
  7. 0.299
  8. 0.9
  9. 1.68
  10. 1.76
  11. 1.023
  12. 0.154
  13. 12.32
  14. 0.378
  15. 2.184
  16. 2.584
  17. 0.273
  18. 0.924
  19. 0.357
  20. 13.63
  21. 14.28
  22. 1.848
  23. 1.302
  24. 24.96
  25. 0.493
  26. 0.444
  27. 0.357
  28. 3.85
  29. 0.24
  30. 0.855
  31. 0.832
  32. 0.084
  33. 1.748
  34. 0.38
  35. 1.53
  36. 9.31
  37. 0.592
  38. 0.84
  39. 18.06
  40. 0.651

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