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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 258 · 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. 1.7.2 × 0.06 =
  2. 2.0.73 × 2.8 =
  3. 3.0.21 × 1.1 =
  4. 4.0.58 × 1.5 =
  5. 5.0.51 × 2.5 =
  6. 6.6.8 × 2.1 =
  7. 7.0.66 × 2.9 =
  8. 8.6.9 × 0.13 =
  9. 9.0.73 × 2.9 =
  10. 10.7.1 × 0.11 =
  11. 11.0.04 × 3.7 =
  12. 12.2.5 × 0.12 =
  13. 13.0.26 × 0.6 =
  14. 14.0.12 × 1.3 =
  15. 15.0.12 × 3.5 =
  16. 16.0.15 × 0.4 =
  17. 17.0.87 × 0.8 =
  18. 18.0.14 × 1.4 =
  19. 19.8.9 × 0.37 =
  20. 20.0.05 × 2.7 =
  21. 21.6.9 × 2.5 =
  22. 22.0.15 × 2.5 =
  23. 23.0.85 × 0.6 =
  24. 24.3.1 × 3.3 =
  25. 25.0.85 × 3.1 =
  26. 26.0.02 × 0.4 =
  27. 27.0.45 × 0.5 =
  28. 28.2.3 × 0.27 =
  29. 29.0.17 × 0.4 =
  30. 30.0.64 × 1.1 =
  31. 31.8.3 × 0.11 =
  32. 32.6.5 × 1.1 =
  33. 33.1.8 × 0.05 =
  34. 34.4.7 × 3.4 =
  35. 35.0.46 × 0.6 =
  36. 36.6.1 × 1.1 =
  37. 37.0.41 × 3.7 =
  38. 38.0.13 × 2.1 =
  39. 39.0.51 × 3.2 =
  40. 40.0.59 × 3.7 =

Answer key

  1. 0.432
  2. 2.044
  3. 0.231
  4. 0.87
  5. 1.275
  6. 14.28
  7. 1.914
  8. 0.897
  9. 2.117
  10. 0.781
  11. 0.148
  12. 0.3
  13. 0.156
  14. 0.156
  15. 0.42
  16. 0.06
  17. 0.696
  18. 0.196
  19. 3.293
  20. 0.135
  21. 17.25
  22. 0.375
  23. 0.51
  24. 10.23
  25. 2.635
  26. 0.008
  27. 0.225
  28. 0.621
  29. 0.068
  30. 0.704
  31. 0.913
  32. 7.15
  33. 0.09
  34. 15.98
  35. 0.276
  36. 6.71
  37. 1.517
  38. 0.273
  39. 1.632
  40. 2.183

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