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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 860 · 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. 1.8.7 × 0.15 =
  2. 2.0.8 × 3.1 =
  3. 3.3.1 × 3.8 =
  4. 4.0.2 × 2.2 =
  5. 5.0.3 × 2.3 =
  6. 6.9.4 × 0.07 =
  7. 7.0.76 × 1.8 =
  8. 8.0.98 × 0.5 =
  9. 9.3.6 × 3.4 =
  10. 10.0.4 × 1.4 =
  11. 11.0.49 × 0.9 =
  12. 12.6.8 × 0.04 =
  13. 13.2.5 × 0.17 =
  14. 14.0.41 × 3.1 =
  15. 15.0.43 × 0.5 =
  16. 16.2.5 × 3.2 =
  17. 17.7.1 × 0.08 =
  18. 18.6.9 × 0.9 =
  19. 19.7.5 × 0.11 =
  20. 20.8.1 × 0.23 =
  21. 21.0.35 × 1.7 =
  22. 22.1.6 × 0.14 =
  23. 23.0.98 × 3.6 =
  24. 24.0.51 × 1.1 =
  25. 25.0.52 × 3.2 =
  26. 26.0.41 × 0.3 =
  27. 27.0.44 × 0.2 =
  28. 28.2.2 × 0.35 =
  29. 29.0.64 × 3.1 =
  30. 30.3.7 × 0.24 =
  31. 31.0.5 × 0.02 =
  32. 32.0.2 × 0.03 =
  33. 33.6.5 × 0.07 =
  34. 34.0.94 × 0.6 =
  35. 35.0.34 × 0.5 =
  36. 36.0.18 × 2.1 =
  37. 37.0.16 × 2.9 =
  38. 38.3.9 × 2.1 =
  39. 39.6.1 × 0.15 =
  40. 40.2.9 × 0.31 =

Answer key

  1. 1.305
  2. 2.48
  3. 11.78
  4. 0.44
  5. 0.69
  6. 0.658
  7. 1.368
  8. 0.49
  9. 12.24
  10. 0.56
  11. 0.441
  12. 0.272
  13. 0.425
  14. 1.271
  15. 0.215
  16. 8
  17. 0.568
  18. 6.21
  19. 0.825
  20. 1.863
  21. 0.595
  22. 0.224
  23. 3.528
  24. 0.561
  25. 1.664
  26. 0.123
  27. 0.088
  28. 0.77
  29. 1.984
  30. 0.888
  31. 0.01
  32. 0.006
  33. 0.455
  34. 0.564
  35. 0.17
  36. 0.378
  37. 0.464
  38. 8.19
  39. 0.915
  40. 0.899

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