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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 448 · 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. 1.31.38 × 1000 =
  2. 2.273.1 × 10 =
  3. 3.49.16 ÷ 100 =
  4. 4.199.3 × 100 =
  5. 5.271.4 × 10 =
  6. 6.31.9 ÷ 1000 =
  7. 7.35.86 × 1000 =
  8. 8.18.07 ÷ 10 =
  9. 9.311.1 × 100 =
  10. 10.119.1 ÷ 10 =
  11. 11.11.3 × 1000 =
  12. 12.6.44 ÷ 10 =
  13. 13.19.81 ÷ 10 =
  14. 14.8.93 × 100 =
  15. 15.34.19 × 100 =
  16. 16.71.7 × 10 =
  17. 17.17.59 × 1000 =
  18. 18.11.34 ÷ 1000 =
  19. 19.45.27 × 100 =
  20. 20.13.78 ÷ 1000 =
  21. 21.170.9 × 100 =
  22. 22.135.1 × 100 =
  23. 23.43.23 ÷ 1000 =
  24. 24.69.5 ÷ 10 =
  25. 25.13.51 × 100 =
  26. 26.26.98 ÷ 1000 =
  27. 27.27.46 ÷ 10 =
  28. 28.277.4 ÷ 1000 =
  29. 29.307.1 ÷ 10 =
  30. 30.18.56 ÷ 1000 =
  31. 31.3.56 ÷ 1000 =
  32. 32.335.4 × 10 =
  33. 33.29.35 × 1000 =
  34. 34.318.3 × 1000 =
  35. 35.36.78 ÷ 10 =
  36. 36.7.67 × 10 =
  37. 37.4.15 ÷ 10 =
  38. 38.441.6 × 1000 =
  39. 39.3.73 × 10 =
  40. 40.232.9 ÷ 10 =

Answer key

  1. 31380
  2. 2731
  3. 0.4916
  4. 19930
  5. 2714
  6. 0.0319
  7. 35860
  8. 1.807
  9. 31110
  10. 11.91
  11. 11300
  12. 0.644
  13. 1.981
  14. 893
  15. 3419
  16. 717
  17. 17590
  18. 0.01134
  19. 4527
  20. 0.01378
  21. 17090
  22. 13510
  23. 0.04323
  24. 6.95
  25. 1351
  26. 0.02698
  27. 2.746
  28. 0.2774
  29. 30.71
  30. 0.01856
  31. 0.00356
  32. 3354
  33. 29350
  34. 318300
  35. 3.678
  36. 76.7
  37. 0.415
  38. 441600
  39. 37.3
  40. 23.29

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