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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 567 · 40 questions
TalentJR

The fast method (Jump the point): Count the zeros: 10 → 1 jump, 100 → 2 jumps, 1000 → 3 jumps. × moves the point right; ÷ moves it left. Run out of digits? Fill the gaps with 0s. Drop 0s at the end of a decimal: 3.40 is 3.4.

NameDateTime takenScore ___ / 40
  1. 1.153.9 ÷ 10 =
  2. 2.41.92 ÷ 1000 =
  3. 3.258.3 ÷ 100 =
  4. 4.458.2 ÷ 1000 =
  5. 5.371.4 × 100 =
  6. 6.389.3 ÷ 10 =
  7. 7.40.1 × 10 =
  8. 8.69.9 × 10 =
  9. 9.45.81 × 1000 =
  10. 10.84.3 × 10 =
  11. 11.409.8 ÷ 10 =
  12. 12.440.9 ÷ 10 =
  13. 13.33.17 × 10 =
  14. 14.12.6 × 1000 =
  15. 15.37.31 × 1000 =
  16. 16.308.8 ÷ 1000 =
  17. 17.139.6 × 10 =
  18. 18.8.59 × 1000 =
  19. 19.40.61 ÷ 1000 =
  20. 20.8.74 ÷ 1000 =
  21. 21.20.55 × 1000 =
  22. 22.365.5 ÷ 100 =
  23. 23.43.29 × 1000 =
  24. 24.12.03 × 10 =
  25. 25.40.08 ÷ 1000 =
  26. 26.12.7 ÷ 10 =
  27. 27.30.52 × 100 =
  28. 28.101.7 ÷ 1000 =
  29. 29.443.1 × 10 =
  30. 30.0.97 × 10 =
  31. 31.413.5 × 10 =
  32. 32.10.7 ÷ 10 =
  33. 33.44.66 × 100 =
  34. 34.380.3 × 100 =
  35. 35.93.5 × 100 =
  36. 36.135.3 ÷ 10 =
  37. 37.247.3 ÷ 100 =
  38. 38.18.78 × 100 =
  39. 39.19.79 ÷ 10 =
  40. 40.406.6 × 1000 =

Answer key

  1. 15.39
  2. 0.04192
  3. 2.583
  4. 0.4582
  5. 37140
  6. 38.93
  7. 401
  8. 699
  9. 45810
  10. 843
  11. 40.98
  12. 44.09
  13. 331.7
  14. 12600
  15. 37310
  16. 0.3088
  17. 1396
  18. 8590
  19. 0.04061
  20. 0.00874
  21. 20550
  22. 3.655
  23. 43290
  24. 120.3
  25. 0.04008
  26. 1.27
  27. 3052
  28. 0.1017
  29. 4431
  30. 9.7
  31. 4135
  32. 1.07
  33. 4466
  34. 38030
  35. 9350
  36. 13.53
  37. 2.473
  38. 1878
  39. 1.979
  40. 406600

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