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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 505 · 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. 1.0.27 × 0.7 =
  2. 2.3.6 × 1.3 =
  3. 3.0.02 × 3.4 =
  4. 4.0.91 × 3.3 =
  5. 5.9.6 × 2.3 =
  6. 6.0.78 × 2.8 =
  7. 7.5.6 × 0.6 =
  8. 8.5.3 × 2.7 =
  9. 9.0.52 × 3.4 =
  10. 10.0.48 × 2.8 =
  11. 11.0.74 × 0.8 =
  12. 12.6.5 × 0.03 =
  13. 13.0.73 × 1.1 =
  14. 14.3.9 × 0.28 =
  15. 15.0.02 × 1.1 =
  16. 16.0.35 × 1.4 =
  17. 17.0.98 × 1.9 =
  18. 18.5.6 × 0.21 =
  19. 19.1.3 × 1.6 =
  20. 20.0.98 × 1.7 =
  21. 21.0.74 × 0.6 =
  22. 22.1.3 × 1.7 =
  23. 23.9.9 × 0.33 =
  24. 24.1.1 × 2.8 =
  25. 25.0.28 × 1.6 =
  26. 26.0.17 × 0.7 =
  27. 27.0.8 × 2.9 =
  28. 28.0.61 × 0.5 =
  29. 29.0.32 × 3.5 =
  30. 30.2.2 × 0.21 =
  31. 31.0.42 × 0.6 =
  32. 32.4.5 × 1.4 =
  33. 33.5.7 × 0.13 =
  34. 34.3.1 × 3.3 =
  35. 35.9.2 × 0.13 =
  36. 36.0.43 × 3.1 =
  37. 37.0.57 × 2.4 =
  38. 38.8.7 × 3.3 =
  39. 39.0.06 × 2.1 =
  40. 40.1.6 × 0.04 =

Answer key

  1. 0.189
  2. 4.68
  3. 0.068
  4. 3.003
  5. 22.08
  6. 2.184
  7. 3.36
  8. 14.31
  9. 1.768
  10. 1.344
  11. 0.592
  12. 0.195
  13. 0.803
  14. 1.092
  15. 0.022
  16. 0.49
  17. 1.862
  18. 1.176
  19. 2.08
  20. 1.666
  21. 0.444
  22. 2.21
  23. 3.267
  24. 3.08
  25. 0.448
  26. 0.119
  27. 2.32
  28. 0.305
  29. 1.12
  30. 0.462
  31. 0.252
  32. 6.3
  33. 0.741
  34. 10.23
  35. 1.196
  36. 1.333
  37. 1.368
  38. 28.71
  39. 0.126
  40. 0.064

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