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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 699 · 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. 1.1.3 × 3.1 =
  2. 2.0.03 × 0.2 =
  3. 3.7.1 × 2.8 =
  4. 4.9.4 × 0.4 =
  5. 5.0.29 × 0.2 =
  6. 6.1.9 × 0.9 =
  7. 7.0.84 × 1.2 =
  8. 8.3.9 × 3.7 =
  9. 9.0.74 × 2.9 =
  10. 10.0.62 × 3.6 =
  11. 11.0.14 × 0.6 =
  12. 12.2.4 × 0.4 =
  13. 13.6.1 × 1.6 =
  14. 14.0.07 × 2.6 =
  15. 15.0.44 × 2.3 =
  16. 16.0.95 × 0.2 =
  17. 17.9.2 × 1.1 =
  18. 18.0.12 × 0.7 =
  19. 19.0.02 × 3.6 =
  20. 20.0.99 × 0.4 =
  21. 21.2.2 × 0.02 =
  22. 22.0.11 × 1.1 =
  23. 23.4.2 × 0.05 =
  24. 24.0.21 × 1.1 =
  25. 25.0.71 × 1.1 =
  26. 26.0.8 × 1.3 =
  27. 27.0.4 × 3.2 =
  28. 28.0.18 × 3.7 =
  29. 29.3.6 × 0.04 =
  30. 30.0.41 × 2.2 =
  31. 31.0.66 × 2.7 =
  32. 32.0.76 × 3.4 =
  33. 33.1.4 × 3.1 =
  34. 34.9.2 × 0.7 =
  35. 35.0.89 × 1.1 =
  36. 36.0.33 × 0.5 =
  37. 37.2.4 × 0.06 =
  38. 38.6.1 × 0.3 =
  39. 39.2.2 × 3.1 =
  40. 40.6.2 × 0.9 =

Answer key

  1. 4.03
  2. 0.006
  3. 19.88
  4. 3.76
  5. 0.058
  6. 1.71
  7. 1.008
  8. 14.43
  9. 2.146
  10. 2.232
  11. 0.084
  12. 0.96
  13. 9.76
  14. 0.182
  15. 1.012
  16. 0.19
  17. 10.12
  18. 0.084
  19. 0.072
  20. 0.396
  21. 0.044
  22. 0.121
  23. 0.21
  24. 0.231
  25. 0.781
  26. 1.04
  27. 1.28
  28. 0.666
  29. 0.144
  30. 0.902
  31. 1.782
  32. 2.584
  33. 4.34
  34. 6.44
  35. 0.979
  36. 0.165
  37. 0.144
  38. 1.83
  39. 6.82
  40. 5.58

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