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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 677 · 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. 1.2.7 × 3.8 =
  2. 2.2.7 × 2.9 =
  3. 3.5.3 × 0.08 =
  4. 4.0.02 × 3.5 =
  5. 5.9.1 × 2.8 =
  6. 6.7.3 × 2.1 =
  7. 7.0.58 × 3.2 =
  8. 8.0.57 × 1.5 =
  9. 9.0.32 × 3.3 =
  10. 10.0.94 × 2.8 =
  11. 11.0.04 × 0.2 =
  12. 12.0.74 × 0.3 =
  13. 13.2.4 × 3.7 =
  14. 14.4.7 × 3.4 =
  15. 15.2.5 × 0.06 =
  16. 16.0.18 × 1.1 =
  17. 17.0.14 × 0.5 =
  18. 18.0.36 × 1.9 =
  19. 19.2.6 × 3.7 =
  20. 20.7.1 × 1.7 =
  21. 21.5.1 × 0.15 =
  22. 22.0.47 × 0.9 =
  23. 23.9.5 × 0.38 =
  24. 24.0.26 × 3.2 =
  25. 25.0.75 × 2.1 =
  26. 26.2.4 × 2.9 =
  27. 27.0.63 × 2.3 =
  28. 28.3.4 × 1.7 =
  29. 29.0.02 × 1.9 =
  30. 30.4.4 × 0.8 =
  31. 31.4.5 × 0.29 =
  32. 32.4.9 × 0.5 =
  33. 33.0.7 × 2.5 =
  34. 34.0.13 × 3.1 =
  35. 35.0.27 × 0.2 =
  36. 36.3.1 × 1.7 =
  37. 37.8.8 × 1.1 =
  38. 38.0.11 × 1.5 =
  39. 39.8.7 × 0.22 =
  40. 40.0.78 × 2.6 =

Answer key

  1. 10.26
  2. 7.83
  3. 0.424
  4. 0.07
  5. 25.48
  6. 15.33
  7. 1.856
  8. 0.855
  9. 1.056
  10. 2.632
  11. 0.008
  12. 0.222
  13. 8.88
  14. 15.98
  15. 0.15
  16. 0.198
  17. 0.07
  18. 0.684
  19. 9.62
  20. 12.07
  21. 0.765
  22. 0.423
  23. 3.61
  24. 0.832
  25. 1.575
  26. 6.96
  27. 1.449
  28. 5.78
  29. 0.038
  30. 3.52
  31. 1.305
  32. 2.45
  33. 1.75
  34. 0.403
  35. 0.054
  36. 5.27
  37. 9.68
  38. 0.165
  39. 1.914
  40. 2.028

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