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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 13 · 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. 1.0.2 × 0.03 =
  2. 2.5.3 × 0.27 =
  3. 3.0.12 × 3.5 =
  4. 4.2.5 × 0.6 =
  5. 5.2.8 × 0.11 =
  6. 6.0.31 × 1.1 =
  7. 7.0.62 × 3.8 =
  8. 8.0.9 × 3.1 =
  9. 9.0.41 × 2.2 =
  10. 10.0.98 × 3.6 =
  11. 11.0.06 × 0.2 =
  12. 12.0.72 × 2.2 =
  13. 13.8.4 × 0.38 =
  14. 14.2.6 × 0.16 =
  15. 15.0.33 × 0.5 =
  16. 16.1.7 × 0.3 =
  17. 17.9.6 × 0.6 =
  18. 18.0.51 × 0.6 =
  19. 19.1.1 × 0.05 =
  20. 20.0.21 × 3.3 =
  21. 21.4.6 × 0.31 =
  22. 22.9.3 × 1.8 =
  23. 23.0.9 × 3.4 =
  24. 24.0.31 × 1.5 =
  25. 25.9.2 × 3.8 =
  26. 26.3.2 × 2.4 =
  27. 27.0.9 × 2.6 =
  28. 28.9.1 × 0.39 =
  29. 29.0.19 × 3.1 =
  30. 30.0.6 × 0.31 =
  31. 31.4.8 × 0.15 =
  32. 32.0.27 × 1.7 =
  33. 33.0.08 × 3.1 =
  34. 34.0.95 × 2.1 =
  35. 35.2.7 × 3.5 =
  36. 36.0.65 × 0.5 =
  37. 37.4.4 × 2.3 =
  38. 38.4.6 × 0.05 =
  39. 39.2.8 × 1.9 =
  40. 40.7.9 × 0.18 =

Answer key

  1. 0.006
  2. 1.431
  3. 0.42
  4. 1.5
  5. 0.308
  6. 0.341
  7. 2.356
  8. 2.79
  9. 0.902
  10. 3.528
  11. 0.012
  12. 1.584
  13. 3.192
  14. 0.416
  15. 0.165
  16. 0.51
  17. 5.76
  18. 0.306
  19. 0.055
  20. 0.693
  21. 1.426
  22. 16.74
  23. 3.06
  24. 0.465
  25. 34.96
  26. 7.68
  27. 2.34
  28. 3.549
  29. 0.589
  30. 0.186
  31. 0.72
  32. 0.459
  33. 0.248
  34. 1.995
  35. 9.45
  36. 0.325
  37. 10.12
  38. 0.23
  39. 5.32
  40. 1.422

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