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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 395 · 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. 1.0.11 × 0.6 =
  2. 2.3.1 × 2.2 =
  3. 3.0.11 × 0.8 =
  4. 4.0.8 × 0.21 =
  5. 5.0.85 × 0.3 =
  6. 6.4.8 × 0.08 =
  7. 7.0.74 × 0.6 =
  8. 8.0.65 × 2.4 =
  9. 9.0.91 × 2.9 =
  10. 10.0.78 × 1.6 =
  11. 11.0.92 × 0.8 =
  12. 12.0.21 × 3.1 =
  13. 13.0.04 × 2.5 =
  14. 14.0.72 × 1.6 =
  15. 15.1.7 × 0.8 =
  16. 16.0.25 × 3.1 =
  17. 17.0.25 × 3.6 =
  18. 18.6.4 × 0.33 =
  19. 19.2.4 × 1.1 =
  20. 20.0.42 × 2.1 =
  21. 21.0.96 × 0.2 =
  22. 22.0.76 × 0.9 =
  23. 23.8.4 × 0.02 =
  24. 24.9.2 × 2.9 =
  25. 25.9.1 × 0.03 =
  26. 26.0.71 × 0.2 =
  27. 27.6.3 × 0.7 =
  28. 28.1.5 × 2.3 =
  29. 29.0.34 × 1.3 =
  30. 30.6.1 × 3.7 =
  31. 31.0.89 × 3.1 =
  32. 32.0.51 × 1.2 =
  33. 33.0.91 × 2.3 =
  34. 34.8.8 × 2.7 =
  35. 35.2.5 × 1.1 =
  36. 36.6.9 × 2.1 =
  37. 37.7.1 × 0.4 =
  38. 38.0.21 × 1.4 =
  39. 39.9.7 × 0.16 =
  40. 40.8.8 × 0.8 =

Answer key

  1. 0.066
  2. 6.82
  3. 0.088
  4. 0.168
  5. 0.255
  6. 0.384
  7. 0.444
  8. 1.56
  9. 2.639
  10. 1.248
  11. 0.736
  12. 0.651
  13. 0.1
  14. 1.152
  15. 1.36
  16. 0.775
  17. 0.9
  18. 2.112
  19. 2.64
  20. 0.882
  21. 0.192
  22. 0.684
  23. 0.168
  24. 26.68
  25. 0.273
  26. 0.142
  27. 4.41
  28. 3.45
  29. 0.442
  30. 22.57
  31. 2.759
  32. 0.612
  33. 2.093
  34. 23.76
  35. 2.75
  36. 14.49
  37. 2.84
  38. 0.294
  39. 1.552
  40. 7.04

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