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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 843 · 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. 1.230.6 ÷ 100 =
  2. 2.36.44 ÷ 1000 =
  3. 3.367.8 × 100 =
  4. 4.35.81 × 1000 =
  5. 5.38.05 × 100 =
  6. 6.71.6 × 10 =
  7. 7.327.2 ÷ 1000 =
  8. 8.84.8 ÷ 100 =
  9. 9.15.16 ÷ 10 =
  10. 10.400.6 × 100 =
  11. 11.0.97 × 1000 =
  12. 12.38.45 ÷ 100 =
  13. 13.28.13 × 1000 =
  14. 14.428.3 × 10 =
  15. 15.6.16 × 100 =
  16. 16.24.07 × 100 =
  17. 17.2.72 ÷ 10 =
  18. 18.8.97 × 1000 =
  19. 19.493.6 ÷ 100 =
  20. 20.89.2 × 10 =
  21. 21.370.4 ÷ 1000 =
  22. 22.35.2 × 100 =
  23. 23.96.6 × 1000 =
  24. 24.7.38 ÷ 1000 =
  25. 25.32.47 ÷ 100 =
  26. 26.265.7 × 100 =
  27. 27.292.1 ÷ 1000 =
  28. 28.19.15 × 100 =
  29. 29.386.1 × 10 =
  30. 30.8.61 × 1000 =
  31. 31.258.1 × 100 =
  32. 32.45.85 × 1000 =
  33. 33.0.77 ÷ 10 =
  34. 34.31.97 ÷ 10 =
  35. 35.151.1 ÷ 10 =
  36. 36.41.19 × 1000 =
  37. 37.57.6 ÷ 100 =
  38. 38.246.1 × 1000 =
  39. 39.15.5 ÷ 100 =
  40. 40.57.5 ÷ 1000 =

Answer key

  1. 2.306
  2. 0.03644
  3. 36780
  4. 35810
  5. 3805
  6. 716
  7. 0.3272
  8. 0.848
  9. 1.516
  10. 40060
  11. 970
  12. 0.3845
  13. 28130
  14. 4283
  15. 616
  16. 2407
  17. 0.272
  18. 8970
  19. 4.936
  20. 892
  21. 0.3704
  22. 3520
  23. 96600
  24. 0.00738
  25. 0.3247
  26. 26570
  27. 0.2921
  28. 1915
  29. 3861
  30. 8610
  31. 25810
  32. 45850
  33. 0.077
  34. 3.197
  35. 15.11
  36. 41190
  37. 0.576
  38. 246100
  39. 0.155
  40. 0.0575

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