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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 326 · 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. 1.75.5 ÷ 1000 =
  2. 2.13.87 ÷ 10 =
  3. 3.188.7 ÷ 100 =
  4. 4.459.1 ÷ 100 =
  5. 5.80.1 ÷ 10 =
  6. 6.71.9 ÷ 100 =
  7. 7.142.3 ÷ 100 =
  8. 8.406.9 × 10 =
  9. 9.49.28 ÷ 1000 =
  10. 10.307.7 × 10 =
  11. 11.16.3 ÷ 1000 =
  12. 12.42.2 ÷ 1000 =
  13. 13.26.52 × 10 =
  14. 14.44.03 ÷ 100 =
  15. 15.234.1 × 1000 =
  16. 16.474.6 ÷ 1000 =
  17. 17.18.24 ÷ 1000 =
  18. 18.14.71 × 10 =
  19. 19.24.32 × 10 =
  20. 20.49.59 ÷ 1000 =
  21. 21.162.8 × 100 =
  22. 22.21.71 ÷ 1000 =
  23. 23.210.9 × 10 =
  24. 24.11.85 ÷ 10 =
  25. 25.134.5 ÷ 10 =
  26. 26.367.1 ÷ 1000 =
  27. 27.46.3 × 1000 =
  28. 28.31.74 × 1000 =
  29. 29.254.2 ÷ 10 =
  30. 30.46.6 ÷ 100 =
  31. 31.25.6 × 10 =
  32. 32.46.07 × 1000 =
  33. 33.284.1 × 10 =
  34. 34.293.9 × 100 =
  35. 35.458.5 × 100 =
  36. 36.64.8 ÷ 100 =
  37. 37.39.55 ÷ 10 =
  38. 38.42.45 × 10 =
  39. 39.383.2 × 1000 =
  40. 40.32.54 × 100 =

Answer key

  1. 0.0755
  2. 1.387
  3. 1.887
  4. 4.591
  5. 8.01
  6. 0.719
  7. 1.423
  8. 4069
  9. 0.04928
  10. 3077
  11. 0.0163
  12. 0.0422
  13. 265.2
  14. 0.4403
  15. 234100
  16. 0.4746
  17. 0.01824
  18. 147.1
  19. 243.2
  20. 0.04959
  21. 16280
  22. 0.02171
  23. 2109
  24. 1.185
  25. 13.45
  26. 0.3671
  27. 46300
  28. 31740
  29. 25.42
  30. 0.466
  31. 256
  32. 46070
  33. 2841
  34. 29390
  35. 45850
  36. 0.648
  37. 3.955
  38. 424.5
  39. 383200
  40. 3254

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