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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 804 · 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. 1.357.2 ÷ 1000 =
  2. 2.23.5 × 100 =
  3. 3.279.1 ÷ 1000 =
  4. 4.76.1 ÷ 1000 =
  5. 5.0.41 ÷ 100 =
  6. 6.335.6 × 1000 =
  7. 7.44.24 ÷ 10 =
  8. 8.13.76 × 10 =
  9. 9.285.8 ÷ 1000 =
  10. 10.417.5 × 10 =
  11. 11.163.1 ÷ 10 =
  12. 12.279.6 ÷ 1000 =
  13. 13.29.09 × 10 =
  14. 14.41.98 × 10 =
  15. 15.381.1 ÷ 100 =
  16. 16.21.34 × 10 =
  17. 17.15.83 ÷ 1000 =
  18. 18.40.11 × 10 =
  19. 19.29.73 × 1000 =
  20. 20.106.1 ÷ 10 =
  21. 21.242.1 ÷ 10 =
  22. 22.14.41 × 100 =
  23. 23.308.8 × 10 =
  24. 24.10.66 ÷ 1000 =
  25. 25.5.95 ÷ 1000 =
  26. 26.11.75 × 10 =
  27. 27.29.64 ÷ 1000 =
  28. 28.93.1 × 100 =
  29. 29.454.8 × 10 =
  30. 30.40.4 × 100 =
  31. 31.11.55 × 10 =
  32. 32.42.51 ÷ 10 =
  33. 33.371.5 ÷ 1000 =
  34. 34.9.85 × 10 =
  35. 35.23.79 × 10 =
  36. 36.32.61 × 10 =
  37. 37.370.1 ÷ 1000 =
  38. 38.22.43 ÷ 100 =
  39. 39.115.2 ÷ 100 =
  40. 40.76.6 ÷ 10 =

Answer key

  1. 0.3572
  2. 2350
  3. 0.2791
  4. 0.0761
  5. 0.0041
  6. 335600
  7. 4.424
  8. 137.6
  9. 0.2858
  10. 4175
  11. 16.31
  12. 0.2796
  13. 290.9
  14. 419.8
  15. 3.811
  16. 213.4
  17. 0.01583
  18. 401.1
  19. 29730
  20. 10.61
  21. 24.21
  22. 1441
  23. 3088
  24. 0.01066
  25. 0.00595
  26. 117.5
  27. 0.02964
  28. 9310
  29. 4548
  30. 4040
  31. 115.5
  32. 4.251
  33. 0.3715
  34. 98.5
  35. 237.9
  36. 326.1
  37. 0.3701
  38. 0.2243
  39. 1.152
  40. 7.66

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