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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 722 · 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. 1.0.79 × 1.6 =
  2. 2.2.8 × 1.6 =
  3. 3.0.41 × 3.2 =
  4. 4.1.1 × 0.04 =
  5. 5.0.49 × 1.1 =
  6. 6.9.4 × 2.4 =
  7. 7.2.7 × 3.1 =
  8. 8.0.55 × 2.1 =
  9. 9.9.1 × 1.8 =
  10. 10.1.4 × 0.06 =
  11. 11.2.4 × 0.31 =
  12. 12.0.31 × 3.4 =
  13. 13.2.6 × 0.34 =
  14. 14.0.98 × 1.4 =
  15. 15.0.82 × 2.7 =
  16. 16.0.49 × 0.7 =
  17. 17.2.8 × 0.18 =
  18. 18.1.6 × 0.35 =
  19. 19.0.61 × 0.5 =
  20. 20.1.7 × 3.1 =
  21. 21.9.5 × 0.25 =
  22. 22.0.6 × 0.6 =
  23. 23.0.74 × 0.3 =
  24. 24.1.2 × 1.9 =
  25. 25.0.32 × 1.1 =
  26. 26.3.5 × 0.9 =
  27. 27.0.16 × 1.5 =
  28. 28.0.87 × 1.4 =
  29. 29.5.5 × 0.14 =
  30. 30.0.24 × 0.3 =
  31. 31.2.5 × 0.31 =
  32. 32.0.7 × 0.3 =
  33. 33.6.5 × 0.09 =
  34. 34.6.2 × 0.38 =
  35. 35.7.4 × 0.31 =
  36. 36.7.1 × 0.5 =
  37. 37.6.5 × 0.21 =
  38. 38.0.5 × 1.9 =
  39. 39.0.18 × 2.4 =
  40. 40.1.1 × 3.8 =

Answer key

  1. 1.264
  2. 4.48
  3. 1.312
  4. 0.044
  5. 0.539
  6. 22.56
  7. 8.37
  8. 1.155
  9. 16.38
  10. 0.084
  11. 0.744
  12. 1.054
  13. 0.884
  14. 1.372
  15. 2.214
  16. 0.343
  17. 0.504
  18. 0.56
  19. 0.305
  20. 5.27
  21. 2.375
  22. 0.36
  23. 0.222
  24. 2.28
  25. 0.352
  26. 3.15
  27. 0.24
  28. 1.218
  29. 0.77
  30. 0.072
  31. 0.775
  32. 0.21
  33. 0.585
  34. 2.356
  35. 2.294
  36. 3.55
  37. 1.365
  38. 0.95
  39. 0.432
  40. 4.18

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