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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 351 · 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. 1.8.3 × 3.9 =
  2. 2.0.76 × 0.8 =
  3. 3.0.46 × 0.4 =
  4. 4.0.33 × 2.8 =
  5. 5.7.6 × 3.3 =
  6. 6.0.92 × 2.3 =
  7. 7.0.24 × 0.5 =
  8. 8.0.35 × 1.8 =
  9. 9.0.46 × 3.7 =
  10. 10.9.2 × 1.2 =
  11. 11.2.1 × 0.11 =
  12. 12.8.5 × 0.32 =
  13. 13.5.5 × 3.8 =
  14. 14.0.6 × 0.9 =
  15. 15.0.68 × 1.1 =
  16. 16.0.6 × 0.09 =
  17. 17.2.4 × 2.1 =
  18. 18.0.12 × 3.9 =
  19. 19.0.53 × 1.6 =
  20. 20.0.64 × 1.2 =
  21. 21.0.43 × 0.3 =
  22. 22.0.11 × 1.9 =
  23. 23.0.12 × 3.8 =
  24. 24.2.9 × 0.09 =
  25. 25.0.25 × 2.7 =
  26. 26.4.4 × 1.1 =
  27. 27.8.7 × 1.1 =
  28. 28.0.41 × 0.3 =
  29. 29.9.3 × 0.27 =
  30. 30.0.9 × 2.1 =
  31. 31.3.9 × 0.8 =
  32. 32.5.1 × 0.05 =
  33. 33.6.9 × 0.08 =
  34. 34.8.1 × 0.07 =
  35. 35.8.1 × 0.31 =
  36. 36.1.2 × 3.1 =
  37. 37.0.98 × 1.3 =
  38. 38.0.7 × 3.5 =
  39. 39.7.7 × 0.39 =
  40. 40.6.3 × 0.21 =

Answer key

  1. 32.37
  2. 0.608
  3. 0.184
  4. 0.924
  5. 25.08
  6. 2.116
  7. 0.12
  8. 0.63
  9. 1.702
  10. 11.04
  11. 0.231
  12. 2.72
  13. 20.9
  14. 0.54
  15. 0.748
  16. 0.054
  17. 5.04
  18. 0.468
  19. 0.848
  20. 0.768
  21. 0.129
  22. 0.209
  23. 0.456
  24. 0.261
  25. 0.675
  26. 4.84
  27. 9.57
  28. 0.123
  29. 2.511
  30. 1.89
  31. 3.12
  32. 0.255
  33. 0.552
  34. 0.567
  35. 2.511
  36. 3.72
  37. 1.274
  38. 2.45
  39. 3.003
  40. 1.323

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