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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 130 · 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. 1.0.36 × 3.5 =
  2. 2.0.48 × 2.3 =
  3. 3.1.6 × 0.14 =
  4. 4.0.71 × 0.4 =
  5. 5.0.91 × 1.4 =
  6. 6.5.6 × 1.6 =
  7. 7.0.08 × 1.6 =
  8. 8.0.89 × 0.9 =
  9. 9.0.9 × 0.04 =
  10. 10.6.3 × 0.28 =
  11. 11.0.54 × 0.8 =
  12. 12.0.59 × 3.6 =
  13. 13.0.31 × 0.5 =
  14. 14.0.42 × 3.4 =
  15. 15.0.16 × 2.3 =
  16. 16.7.9 × 0.26 =
  17. 17.0.74 × 1.1 =
  18. 18.0.28 × 0.4 =
  19. 19.5.1 × 2.1 =
  20. 20.3.9 × 2.8 =
  21. 21.0.27 × 0.9 =
  22. 22.0.21 × 1.3 =
  23. 23.0.03 × 3.4 =
  24. 24.0.5 × 2.2 =
  25. 25.0.65 × 1.8 =
  26. 26.3.6 × 2.5 =
  27. 27.0.68 × 0.5 =
  28. 28.0.05 × 3.1 =
  29. 29.0.99 × 0.9 =
  30. 30.8.1 × 0.04 =
  31. 31.0.69 × 2.3 =
  32. 32.0.6 × 0.8 =
  33. 33.0.26 × 1.1 =
  34. 34.0.38 × 3.1 =
  35. 35.0.45 × 2.5 =
  36. 36.4.6 × 1.2 =
  37. 37.0.17 × 2.3 =
  38. 38.0.19 × 1.5 =
  39. 39.5.4 × 0.21 =
  40. 40.0.38 × 0.6 =

Answer key

  1. 1.26
  2. 1.104
  3. 0.224
  4. 0.284
  5. 1.274
  6. 8.96
  7. 0.128
  8. 0.801
  9. 0.036
  10. 1.764
  11. 0.432
  12. 2.124
  13. 0.155
  14. 1.428
  15. 0.368
  16. 2.054
  17. 0.814
  18. 0.112
  19. 10.71
  20. 10.92
  21. 0.243
  22. 0.273
  23. 0.102
  24. 1.1
  25. 1.17
  26. 9
  27. 0.34
  28. 0.155
  29. 0.891
  30. 0.324
  31. 1.587
  32. 0.48
  33. 0.286
  34. 1.178
  35. 1.125
  36. 5.52
  37. 0.391
  38. 0.285
  39. 1.134
  40. 0.228

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