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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 273 · 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. 1.6.72 ÷ 100 =
  2. 2.15.63 ÷ 1000 =
  3. 3.121.7 × 100 =
  4. 4.45.26 × 10 =
  5. 5.114.8 × 1000 =
  6. 6.115.5 × 1000 =
  7. 7.336.1 ÷ 1000 =
  8. 8.14.01 × 10 =
  9. 9.16.41 × 1000 =
  10. 10.25.26 ÷ 1000 =
  11. 11.398.3 × 10 =
  12. 12.0.96 × 10 =
  13. 13.10.71 ÷ 10 =
  14. 14.24.55 ÷ 100 =
  15. 15.179.9 × 100 =
  16. 16.421.1 ÷ 100 =
  17. 17.36.61 × 1000 =
  18. 18.39.81 × 1000 =
  19. 19.79.2 × 100 =
  20. 20.24.9 ÷ 100 =
  21. 21.358.7 × 100 =
  22. 22.3.95 × 1000 =
  23. 23.6.95 ÷ 10 =
  24. 24.117.2 × 100 =
  25. 25.345.1 × 10 =
  26. 26.333.4 ÷ 10 =
  27. 27.428.5 ÷ 1000 =
  28. 28.67.4 × 10 =
  29. 29.34.65 ÷ 100 =
  30. 30.193.1 × 1000 =
  31. 31.12.87 × 1000 =
  32. 32.24.17 × 10 =
  33. 33.42.24 ÷ 1000 =
  34. 34.333.3 ÷ 1000 =
  35. 35.39.18 ÷ 100 =
  36. 36.142.8 × 100 =
  37. 37.126.8 × 1000 =
  38. 38.34.19 × 1000 =
  39. 39.347.4 × 10 =
  40. 40.37.55 × 10 =

Answer key

  1. 0.0672
  2. 0.01563
  3. 12170
  4. 452.6
  5. 114800
  6. 115500
  7. 0.3361
  8. 140.1
  9. 16410
  10. 0.02526
  11. 3983
  12. 9.6
  13. 1.071
  14. 0.2455
  15. 17990
  16. 4.211
  17. 36610
  18. 39810
  19. 7920
  20. 0.249
  21. 35870
  22. 3950
  23. 0.695
  24. 11720
  25. 3451
  26. 33.34
  27. 0.4285
  28. 674
  29. 0.3465
  30. 193100
  31. 12870
  32. 241.7
  33. 0.04224
  34. 0.3333
  35. 0.3918
  36. 14280
  37. 126800
  38. 34190
  39. 3474
  40. 375.5

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