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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 46 · 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. 1.0.08 × 1.7 =
  2. 2.6.3 × 0.33 =
  3. 3.1.1 × 0.3 =
  4. 4.0.65 × 0.5 =
  5. 5.0.69 × 2.1 =
  6. 6.0.85 × 0.6 =
  7. 7.0.46 × 3.2 =
  8. 8.2.1 × 0.2 =
  9. 9.0.38 × 0.6 =
  10. 10.5.6 × 0.37 =
  11. 11.1.2 × 2.6 =
  12. 12.7.3 × 1.9 =
  13. 13.1.1 × 0.14 =
  14. 14.0.61 × 1.1 =
  15. 15.5.8 × 0.28 =
  16. 16.9.7 × 3.6 =
  17. 17.0.71 × 0.9 =
  18. 18.0.08 × 1.5 =
  19. 19.2.2 × 0.13 =
  20. 20.0.91 × 1.2 =
  21. 21.2.2 × 1.5 =
  22. 22.4.9 × 0.35 =
  23. 23.0.05 × 3.2 =
  24. 24.3.5 × 0.35 =
  25. 25.0.19 × 1.4 =
  26. 26.3.5 × 0.3 =
  27. 27.0.46 × 2.4 =
  28. 28.0.53 × 0.8 =
  29. 29.0.35 × 3.1 =
  30. 30.0.85 × 3.5 =
  31. 31.7.7 × 3.1 =
  32. 32.0.47 × 0.7 =
  33. 33.1.2 × 2.7 =
  34. 34.1.8 × 0.08 =
  35. 35.7.4 × 0.38 =
  36. 36.0.52 × 1.9 =
  37. 37.0.86 × 0.7 =
  38. 38.0.39 × 2.8 =
  39. 39.0.38 × 3.3 =
  40. 40.9.8 × 0.21 =

Answer key

  1. 0.136
  2. 2.079
  3. 0.33
  4. 0.325
  5. 1.449
  6. 0.51
  7. 1.472
  8. 0.42
  9. 0.228
  10. 2.072
  11. 3.12
  12. 13.87
  13. 0.154
  14. 0.671
  15. 1.624
  16. 34.92
  17. 0.639
  18. 0.12
  19. 0.286
  20. 1.092
  21. 3.3
  22. 1.715
  23. 0.16
  24. 1.225
  25. 0.266
  26. 1.05
  27. 1.104
  28. 0.424
  29. 1.085
  30. 2.975
  31. 23.87
  32. 0.329
  33. 3.24
  34. 0.144
  35. 2.812
  36. 0.988
  37. 0.602
  38. 1.092
  39. 1.254
  40. 2.058

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