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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 903 · 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. 1.0.74 × 1.1 =
  2. 2.1.1 × 3.4 =
  3. 3.1.1 × 0.17 =
  4. 4.7.7 × 0.12 =
  5. 5.0.38 × 0.6 =
  6. 6.3.1 × 1.1 =
  7. 7.2.5 × 3.5 =
  8. 8.1.1 × 0.11 =
  9. 9.0.91 × 1.1 =
  10. 10.1.9 × 0.33 =
  11. 11.0.18 × 3.8 =
  12. 12.5.1 × 2.1 =
  13. 13.0.06 × 3.2 =
  14. 14.0.07 × 0.6 =
  15. 15.5.4 × 2.1 =
  16. 16.0.16 × 2.2 =
  17. 17.1.1 × 0.16 =
  18. 18.0.21 × 0.6 =
  19. 19.0.25 × 2.3 =
  20. 20.0.86 × 0.2 =
  21. 21.0.88 × 2.1 =
  22. 22.8.1 × 0.04 =
  23. 23.0.12 × 2.8 =
  24. 24.4.6 × 3.5 =
  25. 25.5.8 × 2.4 =
  26. 26.9.8 × 2.9 =
  27. 27.1.6 × 0.24 =
  28. 28.0.52 × 0.6 =
  29. 29.7.8 × 3.1 =
  30. 30.8.6 × 0.21 =
  31. 31.0.16 × 2.7 =
  32. 32.8.3 × 0.13 =
  33. 33.2.9 × 0.16 =
  34. 34.2.1 × 1.2 =
  35. 35.2.4 × 2.6 =
  36. 36.5.6 × 0.29 =
  37. 37.0.57 × 3.3 =
  38. 38.9.9 × 0.28 =
  39. 39.4.1 × 0.32 =
  40. 40.8.2 × 0.36 =

Answer key

  1. 0.814
  2. 3.74
  3. 0.187
  4. 0.924
  5. 0.228
  6. 3.41
  7. 8.75
  8. 0.121
  9. 1.001
  10. 0.627
  11. 0.684
  12. 10.71
  13. 0.192
  14. 0.042
  15. 11.34
  16. 0.352
  17. 0.176
  18. 0.126
  19. 0.575
  20. 0.172
  21. 1.848
  22. 0.324
  23. 0.336
  24. 16.1
  25. 13.92
  26. 28.42
  27. 0.384
  28. 0.312
  29. 24.18
  30. 1.806
  31. 0.432
  32. 1.079
  33. 0.464
  34. 2.52
  35. 6.24
  36. 1.624
  37. 1.881
  38. 2.772
  39. 1.312
  40. 2.952

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