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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 917 · 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. 1.0.55 × 2.5 =
  2. 2.0.62 × 1.1 =
  3. 3.0.29 × 1.4 =
  4. 4.0.98 × 3.6 =
  5. 5.6.2 × 3.6 =
  6. 6.9.6 × 0.27 =
  7. 7.1.1 × 2.4 =
  8. 8.0.35 × 1.9 =
  9. 9.0.16 × 2.7 =
  10. 10.0.55 × 1.6 =
  11. 11.4.2 × 0.33 =
  12. 12.1.1 × 1.3 =
  13. 13.2.1 × 0.31 =
  14. 14.6.2 × 1.7 =
  15. 15.2.1 × 1.8 =
  16. 16.0.34 × 1.8 =
  17. 17.0.61 × 1.7 =
  18. 18.2.9 × 3.6 =
  19. 19.1.1 × 0.04 =
  20. 20.8.2 × 2.3 =
  21. 21.4.5 × 0.03 =
  22. 22.8.8 × 0.33 =
  23. 23.4.4 × 0.25 =
  24. 24.0.98 × 3.1 =
  25. 25.0.58 × 2.3 =
  26. 26.0.11 × 3.5 =
  27. 27.0.21 × 3.5 =
  28. 28.5.1 × 1.5 =
  29. 29.7.5 × 0.11 =
  30. 30.0.08 × 3.1 =
  31. 31.1.1 × 0.15 =
  32. 32.7.1 × 1.6 =
  33. 33.0.71 × 0.5 =
  34. 34.9.8 × 1.2 =
  35. 35.2.7 × 0.9 =
  36. 36.2.4 × 0.06 =
  37. 37.9.2 × 1.1 =
  38. 38.0.84 × 1.5 =
  39. 39.3.1 × 0.39 =
  40. 40.7.7 × 0.05 =

Answer key

  1. 1.375
  2. 0.682
  3. 0.406
  4. 3.528
  5. 22.32
  6. 2.592
  7. 2.64
  8. 0.665
  9. 0.432
  10. 0.88
  11. 1.386
  12. 1.43
  13. 0.651
  14. 10.54
  15. 3.78
  16. 0.612
  17. 1.037
  18. 10.44
  19. 0.044
  20. 18.86
  21. 0.135
  22. 2.904
  23. 1.1
  24. 3.038
  25. 1.334
  26. 0.385
  27. 0.735
  28. 7.65
  29. 0.825
  30. 0.248
  31. 0.165
  32. 11.36
  33. 0.355
  34. 11.76
  35. 2.43
  36. 0.144
  37. 10.12
  38. 1.26
  39. 1.209
  40. 0.385

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