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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 32 · 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. 1.5.85 ÷ 100 =
  2. 2.43.3 × 1000 =
  3. 3.31.54 × 100 =
  4. 4.133.5 × 100 =
  5. 5.37.55 × 1000 =
  6. 6.43.04 ÷ 10 =
  7. 7.2.45 × 1000 =
  8. 8.35.35 × 100 =
  9. 9.359.4 ÷ 10 =
  10. 10.449.9 × 10 =
  11. 11.0.68 ÷ 10 =
  12. 12.313.5 × 10 =
  13. 13.35.95 ÷ 10 =
  14. 14.37.83 ÷ 10 =
  15. 15.69.9 ÷ 100 =
  16. 16.74.7 ÷ 10 =
  17. 17.493.3 × 1000 =
  18. 18.350.6 × 1000 =
  19. 19.481.6 ÷ 100 =
  20. 20.104.8 ÷ 10 =
  21. 21.14.87 × 100 =
  22. 22.33.68 ÷ 1000 =
  23. 23.430.1 × 10 =
  24. 24.23.73 ÷ 100 =
  25. 25.357.1 × 10 =
  26. 26.1.7 ÷ 1000 =
  27. 27.113.9 ÷ 10 =
  28. 28.21.71 × 10 =
  29. 29.250.2 × 10 =
  30. 30.276.6 ÷ 10 =
  31. 31.21.2 ÷ 100 =
  32. 32.34.41 ÷ 10 =
  33. 33.173.7 × 1000 =
  34. 34.6.11 × 10 =
  35. 35.231.1 × 100 =
  36. 36.4.97 ÷ 10 =
  37. 37.37.36 × 100 =
  38. 38.233.7 × 10 =
  39. 39.424.5 × 100 =
  40. 40.33.95 ÷ 1000 =

Answer key

  1. 0.0585
  2. 43300
  3. 3154
  4. 13350
  5. 37550
  6. 4.304
  7. 2450
  8. 3535
  9. 35.94
  10. 4499
  11. 0.068
  12. 3135
  13. 3.595
  14. 3.783
  15. 0.699
  16. 7.47
  17. 493300
  18. 350600
  19. 4.816
  20. 10.48
  21. 1487
  22. 0.03368
  23. 4301
  24. 0.2373
  25. 3571
  26. 0.0017
  27. 11.39
  28. 217.1
  29. 2502
  30. 27.66
  31. 0.212
  32. 3.441
  33. 173700
  34. 61.1
  35. 23110
  36. 0.497
  37. 3736
  38. 2337
  39. 42450
  40. 0.03395

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