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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 270 · 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. 1.2.4 × 3.2 =
  2. 2.2.3 × 0.16 =
  3. 3.0.92 × 1.7 =
  4. 4.1.4 × 2.1 =
  5. 5.0.34 × 1.6 =
  6. 6.0.55 × 3.4 =
  7. 7.4.2 × 2.7 =
  8. 8.1.6 × 0.17 =
  9. 9.0.76 × 3.8 =
  10. 10.7.8 × 3.2 =
  11. 11.9.6 × 2.6 =
  12. 12.8.8 × 0.16 =
  13. 13.0.7 × 3.6 =
  14. 14.9.7 × 0.33 =
  15. 15.2.1 × 0.08 =
  16. 16.2.8 × 3.5 =
  17. 17.0.7 × 0.11 =
  18. 18.0.32 × 1.9 =
  19. 19.0.83 × 2.9 =
  20. 20.1.9 × 0.14 =
  21. 21.1.9 × 0.22 =
  22. 22.1.5 × 3.8 =
  23. 23.0.65 × 0.9 =
  24. 24.0.96 × 3.3 =
  25. 25.0.65 × 3.8 =
  26. 26.0.28 × 0.5 =
  27. 27.7.2 × 0.22 =
  28. 28.8.6 × 0.36 =
  29. 29.0.21 × 0.9 =
  30. 30.2.5 × 1.1 =
  31. 31.4.2 × 0.07 =
  32. 32.0.51 × 0.5 =
  33. 33.6.8 × 0.26 =
  34. 34.9.6 × 1.2 =
  35. 35.0.3 × 2.1 =
  36. 36.0.66 × 1.1 =
  37. 37.1.2 × 0.23 =
  38. 38.9.5 × 0.9 =
  39. 39.0.33 × 1.7 =
  40. 40.2.5 × 0.21 =

Answer key

  1. 7.68
  2. 0.368
  3. 1.564
  4. 2.94
  5. 0.544
  6. 1.87
  7. 11.34
  8. 0.272
  9. 2.888
  10. 24.96
  11. 24.96
  12. 1.408
  13. 2.52
  14. 3.201
  15. 0.168
  16. 9.8
  17. 0.077
  18. 0.608
  19. 2.407
  20. 0.266
  21. 0.418
  22. 5.7
  23. 0.585
  24. 3.168
  25. 2.47
  26. 0.14
  27. 1.584
  28. 3.096
  29. 0.189
  30. 2.75
  31. 0.294
  32. 0.255
  33. 1.768
  34. 11.52
  35. 0.63
  36. 0.726
  37. 0.276
  38. 8.55
  39. 0.561
  40. 0.525

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