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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 321 · 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. 1.6.4 × 0.29 =
  2. 2.5.2 × 0.21 =
  3. 3.0.32 × 0.6 =
  4. 4.0.46 × 2.4 =
  5. 5.0.65 × 1.1 =
  6. 6.3.7 × 0.19 =
  7. 7.5.4 × 0.16 =
  8. 8.6.8 × 1.6 =
  9. 9.0.11 × 2.3 =
  10. 10.0.61 × 1.7 =
  11. 11.4.3 × 2.7 =
  12. 12.5.1 × 0.06 =
  13. 13.0.93 × 1.3 =
  14. 14.2.9 × 0.11 =
  15. 15.0.25 × 3.4 =
  16. 16.0.38 × 0.6 =
  17. 17.0.73 × 2.1 =
  18. 18.6.2 × 0.09 =
  19. 19.4.1 × 2.1 =
  20. 20.0.71 × 2.1 =
  21. 21.0.68 × 2.4 =
  22. 22.0.83 × 1.3 =
  23. 23.0.95 × 3.9 =
  24. 24.2.9 × 0.02 =
  25. 25.0.92 × 1.6 =
  26. 26.5.5 × 2.1 =
  27. 27.8.5 × 2.8 =
  28. 28.4.1 × 0.04 =
  29. 29.6.3 × 0.02 =
  30. 30.0.32 × 0.6 =
  31. 31.0.59 × 2.4 =
  32. 32.7.1 × 2.1 =
  33. 33.7.9 × 0.07 =
  34. 34.0.93 × 3.1 =
  35. 35.5.3 × 0.2 =
  36. 36.0.05 × 1.3 =
  37. 37.8.8 × 1.4 =
  38. 38.6.2 × 3.3 =
  39. 39.0.93 × 2.1 =
  40. 40.0.06 × 0.7 =

Answer key

  1. 1.856
  2. 1.092
  3. 0.192
  4. 1.104
  5. 0.715
  6. 0.703
  7. 0.864
  8. 10.88
  9. 0.253
  10. 1.037
  11. 11.61
  12. 0.306
  13. 1.209
  14. 0.319
  15. 0.85
  16. 0.228
  17. 1.533
  18. 0.558
  19. 8.61
  20. 1.491
  21. 1.632
  22. 1.079
  23. 3.705
  24. 0.058
  25. 1.472
  26. 11.55
  27. 23.8
  28. 0.164
  29. 0.126
  30. 0.192
  31. 1.416
  32. 14.91
  33. 0.553
  34. 2.883
  35. 1.06
  36. 0.065
  37. 12.32
  38. 20.46
  39. 1.953
  40. 0.042

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