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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 916 · 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. 1.6.8 × 2.5 =
  2. 2.0.85 × 3.4 =
  3. 3.0.43 × 2.5 =
  4. 4.0.25 × 3.8 =
  5. 5.0.63 × 2.7 =
  6. 6.9.7 × 3.4 =
  7. 7.0.06 × 0.6 =
  8. 8.0.43 × 0.5 =
  9. 9.8.1 × 2.3 =
  10. 10.0.79 × 3.1 =
  11. 11.9.1 × 1.8 =
  12. 12.0.85 × 1.6 =
  13. 13.6.2 × 2.2 =
  14. 14.3.7 × 0.12 =
  15. 15.0.38 × 3.6 =
  16. 16.8.9 × 0.16 =
  17. 17.5.6 × 0.2 =
  18. 18.5.9 × 2.2 =
  19. 19.0.77 × 1.6 =
  20. 20.0.05 × 2.7 =
  21. 21.0.54 × 0.6 =
  22. 22.4.3 × 0.38 =
  23. 23.5.2 × 0.6 =
  24. 24.0.08 × 2.6 =
  25. 25.0.76 × 2.8 =
  26. 26.2.6 × 0.29 =
  27. 27.3.4 × 1.6 =
  28. 28.4.6 × 0.21 =
  29. 29.3.5 × 1.5 =
  30. 30.0.9 × 0.14 =
  31. 31.8.6 × 2.7 =
  32. 32.0.51 × 3.7 =
  33. 33.0.3 × 0.11 =
  34. 34.0.86 × 0.7 =
  35. 35.0.57 × 2.7 =
  36. 36.1.3 × 0.25 =
  37. 37.4.9 × 3.1 =
  38. 38.0.47 × 1.6 =
  39. 39.0.31 × 3.8 =
  40. 40.6.2 × 0.4 =

Answer key

  1. 17
  2. 2.89
  3. 1.075
  4. 0.95
  5. 1.701
  6. 32.98
  7. 0.036
  8. 0.215
  9. 18.63
  10. 2.449
  11. 16.38
  12. 1.36
  13. 13.64
  14. 0.444
  15. 1.368
  16. 1.424
  17. 1.12
  18. 12.98
  19. 1.232
  20. 0.135
  21. 0.324
  22. 1.634
  23. 3.12
  24. 0.208
  25. 2.128
  26. 0.754
  27. 5.44
  28. 0.966
  29. 5.25
  30. 0.126
  31. 23.22
  32. 1.887
  33. 0.033
  34. 0.602
  35. 1.539
  36. 0.325
  37. 15.19
  38. 0.752
  39. 1.178
  40. 2.48

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