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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 907 · 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. 1.2.6 × 1.7 =
  2. 2.0.92 × 2.8 =
  3. 3.1.1 × 1.9 =
  4. 4.2.4 × 1.1 =
  5. 5.0.06 × 0.9 =
  6. 6.1.5 × 1.2 =
  7. 7.0.15 × 3.3 =
  8. 8.2.8 × 0.4 =
  9. 9.5.1 × 0.32 =
  10. 10.0.62 × 2.1 =
  11. 11.0.08 × 2.2 =
  12. 12.8.1 × 3.1 =
  13. 13.5.7 × 3.3 =
  14. 14.0.57 × 0.2 =
  15. 15.1.8 × 0.27 =
  16. 16.2.9 × 2.8 =
  17. 17.6.9 × 0.28 =
  18. 18.0.11 × 3.7 =
  19. 19.6.1 × 3.8 =
  20. 20.0.14 × 0.5 =
  21. 21.9.6 × 0.05 =
  22. 22.7.3 × 1.1 =
  23. 23.6.4 × 1.4 =
  24. 24.0.61 × 2.3 =
  25. 25.0.51 × 2.4 =
  26. 26.1.3 × 0.04 =
  27. 27.0.81 × 3.7 =
  28. 28.8.1 × 0.36 =
  29. 29.0.11 × 0.3 =
  30. 30.0.76 × 2.2 =
  31. 31.2.4 × 0.19 =
  32. 32.0.7 × 0.03 =
  33. 33.0.76 × 2.1 =
  34. 34.5.5 × 0.08 =
  35. 35.0.91 × 1.1 =
  36. 36.0.21 × 2.6 =
  37. 37.0.63 × 2.8 =
  38. 38.0.9 × 0.27 =
  39. 39.0.98 × 0.3 =
  40. 40.6.5 × 2.8 =

Answer key

  1. 4.42
  2. 2.576
  3. 2.09
  4. 2.64
  5. 0.054
  6. 1.8
  7. 0.495
  8. 1.12
  9. 1.632
  10. 1.302
  11. 0.176
  12. 25.11
  13. 18.81
  14. 0.114
  15. 0.486
  16. 8.12
  17. 1.932
  18. 0.407
  19. 23.18
  20. 0.07
  21. 0.48
  22. 8.03
  23. 8.96
  24. 1.403
  25. 1.224
  26. 0.052
  27. 2.997
  28. 2.916
  29. 0.033
  30. 1.672
  31. 0.456
  32. 0.021
  33. 1.596
  34. 0.44
  35. 1.001
  36. 0.546
  37. 1.764
  38. 0.243
  39. 0.294
  40. 18.2

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