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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 324 · 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. 1.0.5 × 1.9 =
  2. 2.0.09 × 2.6 =
  3. 3.4.2 × 2.2 =
  4. 4.0.75 × 3.8 =
  5. 5.0.68 × 3.8 =
  6. 6.2.9 × 3.1 =
  7. 7.0.94 × 3.9 =
  8. 8.7.2 × 0.8 =
  9. 9.6.6 × 2.1 =
  10. 10.2.6 × 0.6 =
  11. 11.0.06 × 3.1 =
  12. 12.0.53 × 0.5 =
  13. 13.0.99 × 1.1 =
  14. 14.0.92 × 3.5 =
  15. 15.0.38 × 3.6 =
  16. 16.0.29 × 0.4 =
  17. 17.9.6 × 0.11 =
  18. 18.2.1 × 2.2 =
  19. 19.8.2 × 0.02 =
  20. 20.0.21 × 3.3 =
  21. 21.0.65 × 1.2 =
  22. 22.0.24 × 1.9 =
  23. 23.0.23 × 1.3 =
  24. 24.7.3 × 2.3 =
  25. 25.0.42 × 0.8 =
  26. 26.6.9 × 0.13 =
  27. 27.0.5 × 1.8 =
  28. 28.0.76 × 1.2 =
  29. 29.0.35 × 0.6 =
  30. 30.0.59 × 3.6 =
  31. 31.0.21 × 2.9 =
  32. 32.7.5 × 2.9 =
  33. 33.4.5 × 1.6 =
  34. 34.0.7 × 2.1 =
  35. 35.0.03 × 0.4 =
  36. 36.0.39 × 1.5 =
  37. 37.9.8 × 0.3 =
  38. 38.0.74 × 1.8 =
  39. 39.7.7 × 0.16 =
  40. 40.4.6 × 0.31 =

Answer key

  1. 0.95
  2. 0.234
  3. 9.24
  4. 2.85
  5. 2.584
  6. 8.99
  7. 3.666
  8. 5.76
  9. 13.86
  10. 1.56
  11. 0.186
  12. 0.265
  13. 1.089
  14. 3.22
  15. 1.368
  16. 0.116
  17. 1.056
  18. 4.62
  19. 0.164
  20. 0.693
  21. 0.78
  22. 0.456
  23. 0.299
  24. 16.79
  25. 0.336
  26. 0.897
  27. 0.9
  28. 0.912
  29. 0.21
  30. 2.124
  31. 0.609
  32. 21.75
  33. 7.2
  34. 1.47
  35. 0.012
  36. 0.585
  37. 2.94
  38. 1.332
  39. 1.232
  40. 1.426

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