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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 136 · 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. 1.7.18 ÷ 10 =
  2. 2.430.1 ÷ 100 =
  3. 3.8.56 × 10 =
  4. 4.3.05 ÷ 10 =
  5. 5.16.87 ÷ 1000 =
  6. 6.82.5 × 1000 =
  7. 7.492.8 × 1000 =
  8. 8.498.3 ÷ 100 =
  9. 9.357.2 × 1000 =
  10. 10.11.05 ÷ 10 =
  11. 11.229.4 ÷ 10 =
  12. 12.431.9 ÷ 10 =
  13. 13.411.4 ÷ 1000 =
  14. 14.151.9 ÷ 100 =
  15. 15.12.86 ÷ 10 =
  16. 16.3.81 × 1000 =
  17. 17.137.7 × 100 =
  18. 18.24.11 ÷ 100 =
  19. 19.193.7 ÷ 100 =
  20. 20.46.99 × 100 =
  21. 21.6.89 ÷ 10 =
  22. 22.5.5 × 100 =
  23. 23.187.5 × 10 =
  24. 24.499.8 ÷ 100 =
  25. 25.16.23 × 10 =
  26. 26.395.9 × 1000 =
  27. 27.10.49 × 10 =
  28. 28.263.2 × 10 =
  29. 29.25.8 ÷ 10 =
  30. 30.332.5 × 100 =
  31. 31.40.5 × 1000 =
  32. 32.33.85 × 1000 =
  33. 33.23.13 ÷ 1000 =
  34. 34.36.93 × 1000 =
  35. 35.2.25 ÷ 100 =
  36. 36.53.2 ÷ 1000 =
  37. 37.145.6 ÷ 10 =
  38. 38.171.8 × 1000 =
  39. 39.289.9 ÷ 10 =
  40. 40.47.55 ÷ 100 =

Answer key

  1. 0.718
  2. 4.301
  3. 85.6
  4. 0.305
  5. 0.01687
  6. 82500
  7. 492800
  8. 4.983
  9. 357200
  10. 1.105
  11. 22.94
  12. 43.19
  13. 0.4114
  14. 1.519
  15. 1.286
  16. 3810
  17. 13770
  18. 0.2411
  19. 1.937
  20. 4699
  21. 0.689
  22. 550
  23. 1875
  24. 4.998
  25. 162.3
  26. 395900
  27. 104.9
  28. 2632
  29. 2.58
  30. 33250
  31. 40500
  32. 33850
  33. 0.02313
  34. 36930
  35. 0.0225
  36. 0.0532
  37. 14.56
  38. 171800
  39. 28.99
  40. 0.4755

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