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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 898 · 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. 1.407.4 ÷ 1000 =
  2. 2.44.01 ÷ 1000 =
  3. 3.396.9 ÷ 1000 =
  4. 4.43.42 × 1000 =
  5. 5.49.71 × 10 =
  6. 6.221.7 × 100 =
  7. 7.101.7 ÷ 100 =
  8. 8.137.1 ÷ 100 =
  9. 9.48.55 ÷ 1000 =
  10. 10.33.68 × 10 =
  11. 11.6.01 ÷ 100 =
  12. 12.204.6 ÷ 1000 =
  13. 13.21.31 × 10 =
  14. 14.20.48 × 1000 =
  15. 15.333.3 × 100 =
  16. 16.220.4 ÷ 10 =
  17. 17.17.54 × 1000 =
  18. 18.45.12 ÷ 1000 =
  19. 19.27.86 ÷ 10 =
  20. 20.16.66 × 1000 =
  21. 21.9.57 ÷ 1000 =
  22. 22.39.36 × 10 =
  23. 23.14.38 ÷ 100 =
  24. 24.471.1 × 1000 =
  25. 25.109.1 × 1000 =
  26. 26.18.55 × 100 =
  27. 27.20.94 ÷ 10 =
  28. 28.173.7 × 10 =
  29. 29.29.81 ÷ 10 =
  30. 30.98.5 ÷ 10 =
  31. 31.24.9 ÷ 10 =
  32. 32.46.68 × 100 =
  33. 33.6.83 ÷ 10 =
  34. 34.165.8 × 10 =
  35. 35.446.1 ÷ 1000 =
  36. 36.39.03 × 100 =
  37. 37.362.8 ÷ 10 =
  38. 38.197.5 ÷ 100 =
  39. 39.22.41 ÷ 1000 =
  40. 40.465.2 ÷ 10 =

Answer key

  1. 0.4074
  2. 0.04401
  3. 0.3969
  4. 43420
  5. 497.1
  6. 22170
  7. 1.017
  8. 1.371
  9. 0.04855
  10. 336.8
  11. 0.0601
  12. 0.2046
  13. 213.1
  14. 20480
  15. 33330
  16. 22.04
  17. 17540
  18. 0.04512
  19. 2.786
  20. 16660
  21. 0.00957
  22. 393.6
  23. 0.1438
  24. 471100
  25. 109100
  26. 1855
  27. 2.094
  28. 1737
  29. 2.981
  30. 9.85
  31. 2.49
  32. 4668
  33. 0.683
  34. 1658
  35. 0.4461
  36. 3903
  37. 36.28
  38. 1.975
  39. 0.02241
  40. 46.52

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