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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 871 · 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. 1.0.69 × 3.5 =
  2. 2.9.4 × 3.6 =
  3. 3.3.9 × 3.4 =
  4. 4.2.4 × 0.29 =
  5. 5.8.1 × 2.8 =
  6. 6.4.9 × 0.09 =
  7. 7.0.42 × 3.1 =
  8. 8.0.04 × 2.1 =
  9. 9.3.1 × 3.6 =
  10. 10.1.7 × 0.6 =
  11. 11.8.9 × 0.02 =
  12. 12.0.26 × 3.3 =
  13. 13.0.11 × 2.8 =
  14. 14.0.41 × 0.2 =
  15. 15.5.3 × 0.03 =
  16. 16.8.5 × 3.9 =
  17. 17.0.62 × 0.2 =
  18. 18.0.4 × 0.03 =
  19. 19.1.5 × 1.1 =
  20. 20.1.3 × 0.12 =
  21. 21.0.47 × 0.4 =
  22. 22.0.54 × 0.2 =
  23. 23.0.77 × 1.5 =
  24. 24.0.21 × 3.4 =
  25. 25.0.07 × 0.4 =
  26. 26.3.3 × 0.12 =
  27. 27.0.23 × 2.8 =
  28. 28.1.6 × 0.23 =
  29. 29.0.2 × 1.1 =
  30. 30.0.22 × 0.2 =
  31. 31.0.8 × 0.27 =
  32. 32.0.71 × 2.1 =
  33. 33.5.8 × 0.17 =
  34. 34.0.68 × 3.8 =
  35. 35.0.95 × 3.9 =
  36. 36.0.51 × 3.2 =
  37. 37.4.6 × 0.32 =
  38. 38.0.9 × 2.7 =
  39. 39.9.2 × 0.25 =
  40. 40.8.3 × 2.6 =

Answer key

  1. 2.415
  2. 33.84
  3. 13.26
  4. 0.696
  5. 22.68
  6. 0.441
  7. 1.302
  8. 0.084
  9. 11.16
  10. 1.02
  11. 0.178
  12. 0.858
  13. 0.308
  14. 0.082
  15. 0.159
  16. 33.15
  17. 0.124
  18. 0.012
  19. 1.65
  20. 0.156
  21. 0.188
  22. 0.108
  23. 1.155
  24. 0.714
  25. 0.028
  26. 0.396
  27. 0.644
  28. 0.368
  29. 0.22
  30. 0.044
  31. 0.216
  32. 1.491
  33. 0.986
  34. 2.584
  35. 3.705
  36. 1.632
  37. 1.472
  38. 2.43
  39. 2.3
  40. 21.58

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