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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 676 · 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. 1.15.96 ÷ 1000 =
  2. 2.33.38 × 1000 =
  3. 3.12.72 ÷ 1000 =
  4. 4.43.41 ÷ 1000 =
  5. 5.28.71 ÷ 1000 =
  6. 6.163.3 × 1000 =
  7. 7.353.5 ÷ 100 =
  8. 8.454.1 ÷ 10 =
  9. 9.434.8 ÷ 1000 =
  10. 10.44.49 ÷ 10 =
  11. 11.173.8 × 10 =
  12. 12.36.64 × 100 =
  13. 13.280.7 × 100 =
  14. 14.34.33 ÷ 1000 =
  15. 15.306.3 ÷ 10 =
  16. 16.39.57 ÷ 10 =
  17. 17.389.3 × 1000 =
  18. 18.20.1 × 100 =
  19. 19.105.4 × 10 =
  20. 20.26.81 × 1000 =
  21. 21.235.9 ÷ 100 =
  22. 22.380.8 ÷ 100 =
  23. 23.46.42 × 100 =
  24. 24.402.7 ÷ 100 =
  25. 25.256.1 × 10 =
  26. 26.282.8 ÷ 100 =
  27. 27.450.8 ÷ 10 =
  28. 28.19.94 ÷ 1000 =
  29. 29.272.1 × 1000 =
  30. 30.7.28 × 10 =
  31. 31.8.78 × 10 =
  32. 32.177.1 ÷ 1000 =
  33. 33.175.4 ÷ 10 =
  34. 34.12.24 × 1000 =
  35. 35.365.4 ÷ 10 =
  36. 36.362.6 × 10 =
  37. 37.4.88 × 10 =
  38. 38.98.1 × 10 =
  39. 39.39.81 × 100 =
  40. 40.464.2 × 10 =

Answer key

  1. 0.01596
  2. 33380
  3. 0.01272
  4. 0.04341
  5. 0.02871
  6. 163300
  7. 3.535
  8. 45.41
  9. 0.4348
  10. 4.449
  11. 1738
  12. 3664
  13. 28070
  14. 0.03433
  15. 30.63
  16. 3.957
  17. 389300
  18. 2010
  19. 1054
  20. 26810
  21. 2.359
  22. 3.808
  23. 4642
  24. 4.027
  25. 2561
  26. 2.828
  27. 45.08
  28. 0.01994
  29. 272100
  30. 72.8
  31. 87.8
  32. 0.1771
  33. 17.54
  34. 12240
  35. 36.54
  36. 3626
  37. 48.8
  38. 981
  39. 3981
  40. 4642

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