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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 599 · 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. 1.26.81 ÷ 1000 =
  2. 2.169.9 ÷ 10 =
  3. 3.201.2 × 10 =
  4. 4.9.36 × 10 =
  5. 5.21.98 ÷ 1000 =
  6. 6.374.4 ÷ 100 =
  7. 7.49.04 ÷ 1000 =
  8. 8.38.86 ÷ 10 =
  9. 9.3.51 ÷ 1000 =
  10. 10.13.53 × 10 =
  11. 11.35.08 × 100 =
  12. 12.392.2 × 1000 =
  13. 13.20.61 × 1000 =
  14. 14.150.9 × 1000 =
  15. 15.324.8 × 10 =
  16. 16.353.1 ÷ 10 =
  17. 17.254.5 × 10 =
  18. 18.77.1 ÷ 100 =
  19. 19.33.23 ÷ 1000 =
  20. 20.133.5 ÷ 10 =
  21. 21.13.93 ÷ 10 =
  22. 22.9.69 ÷ 1000 =
  23. 23.41.9 × 10 =
  24. 24.282.9 × 1000 =
  25. 25.14.68 × 1000 =
  26. 26.458.3 ÷ 100 =
  27. 27.212.8 ÷ 100 =
  28. 28.46.91 × 1000 =
  29. 29.59.8 ÷ 1000 =
  30. 30.28.57 × 10 =
  31. 31.43.8 ÷ 100 =
  32. 32.49.05 × 100 =
  33. 33.40.5 ÷ 100 =
  34. 34.38.91 ÷ 10 =
  35. 35.39.37 × 100 =
  36. 36.26.17 × 100 =
  37. 37.101.5 × 100 =
  38. 38.72.6 × 100 =
  39. 39.392.6 × 100 =
  40. 40.102.3 ÷ 10 =

Answer key

  1. 0.02681
  2. 16.99
  3. 2012
  4. 93.6
  5. 0.02198
  6. 3.744
  7. 0.04904
  8. 3.886
  9. 0.00351
  10. 135.3
  11. 3508
  12. 392200
  13. 20610
  14. 150900
  15. 3248
  16. 35.31
  17. 2545
  18. 0.771
  19. 0.03323
  20. 13.35
  21. 1.393
  22. 0.00969
  23. 419
  24. 282900
  25. 14680
  26. 4.583
  27. 2.128
  28. 46910
  29. 0.0598
  30. 285.7
  31. 0.438
  32. 4905
  33. 0.405
  34. 3.891
  35. 3937
  36. 2617
  37. 10150
  38. 7260
  39. 39260
  40. 10.23

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