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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 868 · 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. 1.0.47 × 3.4 =
  2. 2.2.1 × 2.7 =
  3. 3.8.6 × 0.08 =
  4. 4.0.44 × 0.4 =
  5. 5.0.34 × 2.4 =
  6. 6.7.5 × 3.4 =
  7. 7.0.95 × 0.9 =
  8. 8.6.8 × 0.21 =
  9. 9.0.6 × 3.7 =
  10. 10.0.63 × 2.1 =
  11. 11.4.1 × 0.07 =
  12. 12.0.92 × 3.8 =
  13. 13.0.19 × 3.8 =
  14. 14.0.04 × 2.2 =
  15. 15.4.4 × 0.11 =
  16. 16.0.91 × 1.9 =
  17. 17.0.91 × 3.1 =
  18. 18.7.1 × 1.6 =
  19. 19.0.45 × 1.9 =
  20. 20.2.5 × 0.09 =
  21. 21.5.3 × 0.2 =
  22. 22.1.1 × 0.11 =
  23. 23.0.27 × 1.7 =
  24. 24.0.84 × 1.4 =
  25. 25.0.27 × 0.4 =
  26. 26.4.5 × 2.7 =
  27. 27.0.09 × 2.6 =
  28. 28.0.21 × 0.6 =
  29. 29.7.8 × 0.29 =
  30. 30.0.5 × 3.8 =
  31. 31.7.8 × 0.14 =
  32. 32.0.93 × 2.1 =
  33. 33.2.6 × 3.1 =
  34. 34.0.58 × 0.2 =
  35. 35.0.74 × 2.1 =
  36. 36.5.2 × 3.9 =
  37. 37.0.89 × 3.1 =
  38. 38.2.7 × 0.16 =
  39. 39.2.9 × 2.1 =
  40. 40.0.67 × 2.6 =

Answer key

  1. 1.598
  2. 5.67
  3. 0.688
  4. 0.176
  5. 0.816
  6. 25.5
  7. 0.855
  8. 1.428
  9. 2.22
  10. 1.323
  11. 0.287
  12. 3.496
  13. 0.722
  14. 0.088
  15. 0.484
  16. 1.729
  17. 2.821
  18. 11.36
  19. 0.855
  20. 0.225
  21. 1.06
  22. 0.121
  23. 0.459
  24. 1.176
  25. 0.108
  26. 12.15
  27. 0.234
  28. 0.126
  29. 2.262
  30. 1.9
  31. 1.092
  32. 1.953
  33. 8.06
  34. 0.116
  35. 1.554
  36. 20.28
  37. 2.759
  38. 0.432
  39. 6.09
  40. 1.742

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