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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 356 · 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. 1.0.11 × 1.9 =
  2. 2.0.18 × 1.8 =
  3. 3.3.1 × 0.5 =
  4. 4.0.69 × 2.1 =
  5. 5.0.02 × 2.7 =
  6. 6.0.37 × 3.4 =
  7. 7.8.1 × 2.8 =
  8. 8.0.74 × 0.7 =
  9. 9.3.2 × 2.1 =
  10. 10.0.09 × 1.8 =
  11. 11.1.3 × 1.2 =
  12. 12.9.1 × 1.4 =
  13. 13.1.4 × 0.05 =
  14. 14.0.74 × 2.8 =
  15. 15.0.28 × 0.3 =
  16. 16.0.16 × 3.4 =
  17. 17.6.5 × 1.8 =
  18. 18.3.2 × 0.32 =
  19. 19.1.4 × 0.18 =
  20. 20.9.8 × 0.8 =
  21. 21.0.37 × 1.7 =
  22. 22.2.4 × 1.1 =
  23. 23.0.73 × 3.1 =
  24. 24.0.05 × 0.4 =
  25. 25.7.6 × 3.4 =
  26. 26.0.42 × 3.3 =
  27. 27.0.14 × 3.5 =
  28. 28.5.1 × 0.8 =
  29. 29.0.33 × 2.8 =
  30. 30.5.9 × 0.38 =
  31. 31.0.11 × 1.5 =
  32. 32.0.51 × 2.1 =
  33. 33.9.8 × 1.6 =
  34. 34.8.7 × 1.8 =
  35. 35.0.31 × 0.4 =
  36. 36.0.17 × 2.2 =
  37. 37.0.88 × 0.8 =
  38. 38.4.5 × 2.1 =
  39. 39.0.07 × 3.7 =
  40. 40.7.2 × 1.2 =

Answer key

  1. 0.209
  2. 0.324
  3. 1.55
  4. 1.449
  5. 0.054
  6. 1.258
  7. 22.68
  8. 0.518
  9. 6.72
  10. 0.162
  11. 1.56
  12. 12.74
  13. 0.07
  14. 2.072
  15. 0.084
  16. 0.544
  17. 11.7
  18. 1.024
  19. 0.252
  20. 7.84
  21. 0.629
  22. 2.64
  23. 2.263
  24. 0.02
  25. 25.84
  26. 1.386
  27. 0.49
  28. 4.08
  29. 0.924
  30. 2.242
  31. 0.165
  32. 1.071
  33. 15.68
  34. 15.66
  35. 0.124
  36. 0.374
  37. 0.704
  38. 9.45
  39. 0.259
  40. 8.64

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