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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 988 · 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. 1.0.25 × 1.4 =
  2. 2.9.6 × 0.35 =
  3. 3.3.1 × 2.5 =
  4. 4.2.9 × 1.9 =
  5. 5.7.2 × 0.4 =
  6. 6.0.07 × 0.8 =
  7. 7.1.9 × 1.5 =
  8. 8.5.4 × 0.11 =
  9. 9.6.7 × 0.11 =
  10. 10.2.2 × 0.03 =
  11. 11.0.14 × 0.5 =
  12. 12.0.54 × 2.8 =
  13. 13.0.87 × 1.3 =
  14. 14.8.4 × 2.1 =
  15. 15.6.6 × 0.19 =
  16. 16.4.9 × 2.5 =
  17. 17.0.09 × 2.1 =
  18. 18.1.7 × 0.2 =
  19. 19.4.5 × 1.8 =
  20. 20.0.73 × 0.5 =
  21. 21.0.55 × 2.6 =
  22. 22.3.8 × 0.11 =
  23. 23.0.7 × 0.02 =
  24. 24.0.86 × 1.3 =
  25. 25.0.91 × 3.3 =
  26. 26.4.5 × 0.7 =
  27. 27.0.61 × 2.5 =
  28. 28.4.9 × 0.17 =
  29. 29.0.18 × 3.5 =
  30. 30.9.8 × 0.8 =
  31. 31.0.55 × 2.5 =
  32. 32.0.22 × 2.1 =
  33. 33.3.9 × 2.1 =
  34. 34.4.9 × 3.6 =
  35. 35.6.1 × 2.1 =
  36. 36.0.18 × 0.7 =
  37. 37.0.11 × 2.1 =
  38. 38.6.3 × 2.1 =
  39. 39.6.8 × 0.37 =
  40. 40.9.8 × 0.6 =

Answer key

  1. 0.35
  2. 3.36
  3. 7.75
  4. 5.51
  5. 2.88
  6. 0.056
  7. 2.85
  8. 0.594
  9. 0.737
  10. 0.066
  11. 0.07
  12. 1.512
  13. 1.131
  14. 17.64
  15. 1.254
  16. 12.25
  17. 0.189
  18. 0.34
  19. 8.1
  20. 0.365
  21. 1.43
  22. 0.418
  23. 0.014
  24. 1.118
  25. 3.003
  26. 3.15
  27. 1.525
  28. 0.833
  29. 0.63
  30. 7.84
  31. 1.375
  32. 0.462
  33. 8.19
  34. 17.64
  35. 12.81
  36. 0.126
  37. 0.231
  38. 13.23
  39. 2.516
  40. 5.88

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