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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 146 · 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. 1.5.1 × 0.08 =
  2. 2.0.48 × 1.5 =
  3. 3.0.43 × 3.8 =
  4. 4.0.37 × 2.9 =
  5. 5.5.2 × 3.9 =
  6. 6.0.72 × 3.1 =
  7. 7.0.5 × 0.02 =
  8. 8.0.34 × 1.1 =
  9. 9.4.3 × 0.35 =
  10. 10.6.5 × 3.1 =
  11. 11.0.94 × 2.5 =
  12. 12.6.5 × 3.6 =
  13. 13.3.3 × 0.25 =
  14. 14.0.56 × 2.8 =
  15. 15.5.3 × 2.1 =
  16. 16.5.7 × 1.4 =
  17. 17.7.3 × 3.1 =
  18. 18.2.7 × 3.7 =
  19. 19.0.27 × 1.7 =
  20. 20.0.7 × 0.05 =
  21. 21.8.2 × 0.03 =
  22. 22.0.08 × 0.3 =
  23. 23.1.2 × 0.4 =
  24. 24.3.2 × 0.11 =
  25. 25.9.4 × 0.15 =
  26. 26.9.6 × 2.7 =
  27. 27.3.9 × 0.21 =
  28. 28.0.53 × 3.1 =
  29. 29.6.8 × 1.9 =
  30. 30.4.6 × 0.26 =
  31. 31.1.4 × 0.35 =
  32. 32.0.92 × 0.9 =
  33. 33.2.6 × 2.5 =
  34. 34.7.6 × 0.33 =
  35. 35.9.6 × 0.34 =
  36. 36.1.9 × 0.08 =
  37. 37.1.1 × 2.4 =
  38. 38.6.1 × 0.21 =
  39. 39.0.62 × 0.8 =
  40. 40.6.2 × 3.5 =

Answer key

  1. 0.408
  2. 0.72
  3. 1.634
  4. 1.073
  5. 20.28
  6. 2.232
  7. 0.01
  8. 0.374
  9. 1.505
  10. 20.15
  11. 2.35
  12. 23.4
  13. 0.825
  14. 1.568
  15. 11.13
  16. 7.98
  17. 22.63
  18. 9.99
  19. 0.459
  20. 0.035
  21. 0.246
  22. 0.024
  23. 0.48
  24. 0.352
  25. 1.41
  26. 25.92
  27. 0.819
  28. 1.643
  29. 12.92
  30. 1.196
  31. 0.49
  32. 0.828
  33. 6.5
  34. 2.508
  35. 3.264
  36. 0.152
  37. 2.64
  38. 1.281
  39. 0.496
  40. 21.7

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