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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 818 · 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. 1.7.5 × 0.6 =
  2. 2.6.2 × 0.03 =
  3. 3.0.37 × 3.1 =
  4. 4.0.08 × 0.9 =
  5. 5.0.91 × 1.1 =
  6. 6.0.2 × 3.7 =
  7. 7.0.4 × 0.15 =
  8. 8.0.71 × 0.4 =
  9. 9.6.5 × 2.2 =
  10. 10.0.81 × 2.9 =
  11. 11.5.7 × 0.27 =
  12. 12.0.34 × 3.5 =
  13. 13.0.6 × 0.8 =
  14. 14.0.19 × 0.7 =
  15. 15.0.07 × 2.8 =
  16. 16.5.9 × 1.2 =
  17. 17.1.1 × 0.35 =
  18. 18.0.83 × 0.3 =
  19. 19.1.9 × 0.4 =
  20. 20.0.17 × 3.6 =
  21. 21.0.26 × 2.2 =
  22. 22.6.4 × 2.2 =
  23. 23.2.1 × 1.3 =
  24. 24.5.3 × 0.02 =
  25. 25.0.91 × 3.8 =
  26. 26.0.35 × 1.8 =
  27. 27.2.4 × 1.1 =
  28. 28.1.1 × 0.02 =
  29. 29.0.5 × 3.3 =
  30. 30.6.6 × 1.4 =
  31. 31.3.4 × 1.1 =
  32. 32.2.4 × 0.27 =
  33. 33.0.08 × 2.6 =
  34. 34.0.97 × 0.9 =
  35. 35.7.7 × 0.03 =
  36. 36.2.4 × 0.32 =
  37. 37.8.7 × 0.4 =
  38. 38.0.22 × 0.8 =
  39. 39.9.2 × 0.14 =
  40. 40.0.9 × 3.4 =

Answer key

  1. 4.5
  2. 0.186
  3. 1.147
  4. 0.072
  5. 1.001
  6. 0.74
  7. 0.06
  8. 0.284
  9. 14.3
  10. 2.349
  11. 1.539
  12. 1.19
  13. 0.48
  14. 0.133
  15. 0.196
  16. 7.08
  17. 0.385
  18. 0.249
  19. 0.76
  20. 0.612
  21. 0.572
  22. 14.08
  23. 2.73
  24. 0.106
  25. 3.458
  26. 0.63
  27. 2.64
  28. 0.022
  29. 1.65
  30. 9.24
  31. 3.74
  32. 0.648
  33. 0.208
  34. 0.873
  35. 0.231
  36. 0.768
  37. 3.48
  38. 0.176
  39. 1.288
  40. 3.06

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