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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 304 · 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. 1.42.95 ÷ 100 =
  2. 2.431.9 × 1000 =
  3. 3.280.1 × 100 =
  4. 4.48.01 × 10 =
  5. 5.311.3 × 10 =
  6. 6.10.04 × 10 =
  7. 7.269.5 ÷ 10 =
  8. 8.295.6 × 100 =
  9. 9.8.77 × 1000 =
  10. 10.51.5 ÷ 100 =
  11. 11.0.17 ÷ 1000 =
  12. 12.309.5 × 10 =
  13. 13.134.4 ÷ 1000 =
  14. 14.478.1 × 100 =
  15. 15.7.58 × 10 =
  16. 16.25.3 × 100 =
  17. 17.351.8 ÷ 100 =
  18. 18.256.7 ÷ 10 =
  19. 19.250.4 × 10 =
  20. 20.482.5 × 10 =
  21. 21.79.8 ÷ 10 =
  22. 22.38.64 × 1000 =
  23. 23.391.1 ÷ 10 =
  24. 24.37.26 × 100 =
  25. 25.85.8 × 1000 =
  26. 26.37.74 × 100 =
  27. 27.11.95 ÷ 10 =
  28. 28.1.29 × 10 =
  29. 29.43.56 ÷ 1000 =
  30. 30.8.19 ÷ 1000 =
  31. 31.396.4 × 100 =
  32. 32.93.1 ÷ 10 =
  33. 33.366.3 ÷ 1000 =
  34. 34.130.6 × 100 =
  35. 35.7.8 ÷ 100 =
  36. 36.24.66 ÷ 100 =
  37. 37.102.3 × 100 =
  38. 38.7.01 × 1000 =
  39. 39.49.19 ÷ 1000 =
  40. 40.1.48 × 1000 =

Answer key

  1. 0.4295
  2. 431900
  3. 28010
  4. 480.1
  5. 3113
  6. 100.4
  7. 26.95
  8. 29560
  9. 8770
  10. 0.515
  11. 0.00017
  12. 3095
  13. 0.1344
  14. 47810
  15. 75.8
  16. 2530
  17. 3.518
  18. 25.67
  19. 2504
  20. 4825
  21. 7.98
  22. 38640
  23. 39.11
  24. 3726
  25. 85800
  26. 3774
  27. 1.195
  28. 12.9
  29. 0.04356
  30. 0.00819
  31. 39640
  32. 9.31
  33. 0.3663
  34. 13060
  35. 0.078
  36. 0.2466
  37. 10230
  38. 7010
  39. 0.04919
  40. 1480

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