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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 693 · 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. 1.493.5 × 1000 =
  2. 2.176.4 ÷ 10 =
  3. 3.277.5 ÷ 10 =
  4. 4.137.2 ÷ 100 =
  5. 5.13.76 × 1000 =
  6. 6.468.9 ÷ 10 =
  7. 7.38.11 ÷ 10 =
  8. 8.14.29 ÷ 10 =
  9. 9.331.4 × 1000 =
  10. 10.16.47 ÷ 1000 =
  11. 11.49.11 ÷ 1000 =
  12. 12.395.8 × 100 =
  13. 13.74.6 ÷ 1000 =
  14. 14.5.15 × 1000 =
  15. 15.108.8 × 1000 =
  16. 16.32.12 × 1000 =
  17. 17.360.8 ÷ 100 =
  18. 18.408.8 ÷ 1000 =
  19. 19.33.31 × 10 =
  20. 20.342.2 ÷ 10 =
  21. 21.46.26 ÷ 1000 =
  22. 22.41.11 ÷ 10 =
  23. 23.42.14 ÷ 1000 =
  24. 24.23.16 ÷ 10 =
  25. 25.57.4 × 100 =
  26. 26.435.9 × 100 =
  27. 27.19.85 ÷ 1000 =
  28. 28.10.82 × 1000 =
  29. 29.208.6 × 10 =
  30. 30.142.1 ÷ 100 =
  31. 31.85.5 ÷ 100 =
  32. 32.10.53 ÷ 10 =
  33. 33.20.33 × 100 =
  34. 34.250.1 ÷ 10 =
  35. 35.12.04 × 10 =
  36. 36.82.1 ÷ 10 =
  37. 37.11.54 × 1000 =
  38. 38.227.1 × 10 =
  39. 39.196.9 × 10 =
  40. 40.41.58 × 1000 =

Answer key

  1. 493500
  2. 17.64
  3. 27.75
  4. 1.372
  5. 13760
  6. 46.89
  7. 3.811
  8. 1.429
  9. 331400
  10. 0.01647
  11. 0.04911
  12. 39580
  13. 0.0746
  14. 5150
  15. 108800
  16. 32120
  17. 3.608
  18. 0.4088
  19. 333.1
  20. 34.22
  21. 0.04626
  22. 4.111
  23. 0.04214
  24. 2.316
  25. 5740
  26. 43590
  27. 0.01985
  28. 10820
  29. 2086
  30. 1.421
  31. 0.855
  32. 1.053
  33. 2033
  34. 25.01
  35. 120.4
  36. 8.21
  37. 11540
  38. 2271
  39. 1969
  40. 41580

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