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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 648 · 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. 1.461.3 ÷ 10 =
  2. 2.6.8 × 10 =
  3. 3.13.05 × 100 =
  4. 4.0.22 ÷ 1000 =
  5. 5.269.8 × 10 =
  6. 6.481.8 ÷ 1000 =
  7. 7.374.6 ÷ 1000 =
  8. 8.42.11 ÷ 100 =
  9. 9.22.85 ÷ 10 =
  10. 10.25.27 × 100 =
  11. 11.6.52 × 1000 =
  12. 12.14.88 × 10 =
  13. 13.372.4 ÷ 1000 =
  14. 14.264.8 × 100 =
  15. 15.9.89 × 10 =
  16. 16.242.1 ÷ 100 =
  17. 17.444.2 ÷ 100 =
  18. 18.38.66 × 10 =
  19. 19.383.6 × 10 =
  20. 20.20.31 × 10 =
  21. 21.277.4 × 10 =
  22. 22.34.89 × 10 =
  23. 23.438.4 × 100 =
  24. 24.6.77 × 100 =
  25. 25.9.06 ÷ 1000 =
  26. 26.33.1 × 10 =
  27. 27.173.3 × 100 =
  28. 28.11.19 × 10 =
  29. 29.11.17 ÷ 10 =
  30. 30.413.2 × 1000 =
  31. 31.40.76 × 1000 =
  32. 32.13.1 ÷ 10 =
  33. 33.33.69 × 100 =
  34. 34.293.8 × 1000 =
  35. 35.439.1 × 10 =
  36. 36.19.91 ÷ 1000 =
  37. 37.31.78 ÷ 100 =
  38. 38.28.58 × 100 =
  39. 39.24.11 ÷ 100 =
  40. 40.73.5 × 10 =

Answer key

  1. 46.13
  2. 68
  3. 1305
  4. 0.00022
  5. 2698
  6. 0.4818
  7. 0.3746
  8. 0.4211
  9. 2.285
  10. 2527
  11. 6520
  12. 148.8
  13. 0.3724
  14. 26480
  15. 98.9
  16. 2.421
  17. 4.442
  18. 386.6
  19. 3836
  20. 203.1
  21. 2774
  22. 348.9
  23. 43840
  24. 677
  25. 0.00906
  26. 331
  27. 17330
  28. 111.9
  29. 1.117
  30. 413200
  31. 40760
  32. 1.31
  33. 3369
  34. 293800
  35. 4391
  36. 0.01991
  37. 0.3178
  38. 2858
  39. 0.2411
  40. 735

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