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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 594 · 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. 1.34.65 ÷ 10 =
  2. 2.18.36 ÷ 1000 =
  3. 3.497.5 × 10 =
  4. 4.61.3 ÷ 10 =
  5. 5.46.11 × 10 =
  6. 6.36.23 × 100 =
  7. 7.47.2 × 100 =
  8. 8.335.7 × 10 =
  9. 9.6.37 ÷ 10 =
  10. 10.438.1 × 10 =
  11. 11.75.3 × 100 =
  12. 12.16.06 × 1000 =
  13. 13.121.6 × 100 =
  14. 14.46.25 ÷ 10 =
  15. 15.438.3 × 10 =
  16. 16.25.59 ÷ 10 =
  17. 17.444.1 ÷ 100 =
  18. 18.385.1 × 100 =
  19. 19.372.7 ÷ 1000 =
  20. 20.393.6 × 10 =
  21. 21.493.7 × 1000 =
  22. 22.33.3 ÷ 1000 =
  23. 23.32.88 ÷ 1000 =
  24. 24.52.9 × 10 =
  25. 25.36.97 ÷ 10 =
  26. 26.37.47 ÷ 1000 =
  27. 27.47.95 ÷ 100 =
  28. 28.33.01 ÷ 10 =
  29. 29.9.07 × 10 =
  30. 30.336.8 ÷ 100 =
  31. 31.277.6 × 10 =
  32. 32.52.7 ÷ 1000 =
  33. 33.9.07 × 10 =
  34. 34.387.4 ÷ 1000 =
  35. 35.17.06 × 10 =
  36. 36.48.79 ÷ 10 =
  37. 37.36.49 × 100 =
  38. 38.22.57 × 1000 =
  39. 39.420.1 × 100 =
  40. 40.44.88 × 1000 =

Answer key

  1. 3.465
  2. 0.01836
  3. 4975
  4. 6.13
  5. 461.1
  6. 3623
  7. 4720
  8. 3357
  9. 0.637
  10. 4381
  11. 7530
  12. 16060
  13. 12160
  14. 4.625
  15. 4383
  16. 2.559
  17. 4.441
  18. 38510
  19. 0.3727
  20. 3936
  21. 493700
  22. 0.0333
  23. 0.03288
  24. 529
  25. 3.697
  26. 0.03747
  27. 0.4795
  28. 3.301
  29. 90.7
  30. 3.368
  31. 2776
  32. 0.0527
  33. 90.7
  34. 0.3874
  35. 170.6
  36. 4.879
  37. 3649
  38. 22570
  39. 42010
  40. 44880

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