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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 376 · 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. 1.6.56 ÷ 10 =
  2. 2.438.9 × 100 =
  3. 3.244.8 ÷ 1000 =
  4. 4.86.1 ÷ 100 =
  5. 5.291.7 × 10 =
  6. 6.46.42 × 10 =
  7. 7.4.65 × 1000 =
  8. 8.271.1 ÷ 1000 =
  9. 9.47.09 ÷ 10 =
  10. 10.37.78 × 100 =
  11. 11.85.7 ÷ 100 =
  12. 12.26.61 ÷ 10 =
  13. 13.29.12 × 100 =
  14. 14.11.77 × 10 =
  15. 15.203.2 ÷ 1000 =
  16. 16.16.83 × 10 =
  17. 17.44.54 ÷ 100 =
  18. 18.42.04 × 100 =
  19. 19.7.81 × 100 =
  20. 20.301.1 × 1000 =
  21. 21.4.51 × 100 =
  22. 22.107.4 × 100 =
  23. 23.334.3 ÷ 1000 =
  24. 24.3.55 ÷ 100 =
  25. 25.28.64 × 10 =
  26. 26.48.4 × 10 =
  27. 27.246.5 × 100 =
  28. 28.23.44 ÷ 100 =
  29. 29.265.5 ÷ 10 =
  30. 30.37.21 ÷ 100 =
  31. 31.270.6 × 10 =
  32. 32.233.2 ÷ 10 =
  33. 33.5.4 × 1000 =
  34. 34.256.3 ÷ 10 =
  35. 35.34.61 × 100 =
  36. 36.197.6 × 100 =
  37. 37.49.55 ÷ 1000 =
  38. 38.6.71 ÷ 100 =
  39. 39.81.1 ÷ 100 =
  40. 40.9.74 ÷ 1000 =

Answer key

  1. 0.656
  2. 43890
  3. 0.2448
  4. 0.861
  5. 2917
  6. 464.2
  7. 4650
  8. 0.2711
  9. 4.709
  10. 3778
  11. 0.857
  12. 2.661
  13. 2912
  14. 117.7
  15. 0.2032
  16. 168.3
  17. 0.4454
  18. 4204
  19. 781
  20. 301100
  21. 451
  22. 10740
  23. 0.3343
  24. 0.0355
  25. 286.4
  26. 484
  27. 24650
  28. 0.2344
  29. 26.55
  30. 0.3721
  31. 2706
  32. 23.32
  33. 5400
  34. 25.63
  35. 3461
  36. 19760
  37. 0.04955
  38. 0.0671
  39. 0.811
  40. 0.00974

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