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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 816 · 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. 1.7.4 × 2.7 =
  2. 2.0.71 × 0.7 =
  3. 3.0.3 × 0.14 =
  4. 4.0.02 × 1.1 =
  5. 5.5.2 × 1.7 =
  6. 6.0.22 × 0.4 =
  7. 7.0.49 × 1.1 =
  8. 8.0.83 × 3.7 =
  9. 9.0.87 × 1.5 =
  10. 10.7.6 × 0.11 =
  11. 11.8.6 × 0.31 =
  12. 12.7.8 × 0.29 =
  13. 13.9.5 × 0.5 =
  14. 14.0.8 × 2.6 =
  15. 15.0.53 × 3.8 =
  16. 16.9.3 × 0.25 =
  17. 17.0.45 × 1.4 =
  18. 18.2.1 × 0.15 =
  19. 19.9.1 × 0.27 =
  20. 20.8.7 × 0.22 =
  21. 21.0.12 × 3.6 =
  22. 22.1.4 × 0.16 =
  23. 23.1.1 × 1.9 =
  24. 24.4.2 × 0.05 =
  25. 25.0.6 × 3.5 =
  26. 26.0.05 × 0.2 =
  27. 27.6.4 × 3.7 =
  28. 28.0.49 × 2.6 =
  29. 29.0.52 × 3.7 =
  30. 30.4.4 × 0.26 =
  31. 31.3.5 × 0.08 =
  32. 32.0.96 × 2.1 =
  33. 33.0.24 × 2.9 =
  34. 34.6.2 × 2.4 =
  35. 35.0.96 × 3.7 =
  36. 36.0.3 × 0.33 =
  37. 37.0.16 × 1.5 =
  38. 38.0.11 × 2.1 =
  39. 39.1.7 × 0.11 =
  40. 40.0.51 × 2.9 =

Answer key

  1. 19.98
  2. 0.497
  3. 0.042
  4. 0.022
  5. 8.84
  6. 0.088
  7. 0.539
  8. 3.071
  9. 1.305
  10. 0.836
  11. 2.666
  12. 2.262
  13. 4.75
  14. 2.08
  15. 2.014
  16. 2.325
  17. 0.63
  18. 0.315
  19. 2.457
  20. 1.914
  21. 0.432
  22. 0.224
  23. 2.09
  24. 0.21
  25. 2.1
  26. 0.01
  27. 23.68
  28. 1.274
  29. 1.924
  30. 1.144
  31. 0.28
  32. 2.016
  33. 0.696
  34. 14.88
  35. 3.552
  36. 0.099
  37. 0.24
  38. 0.231
  39. 0.187
  40. 1.479

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