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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 184 · 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. 1.117.3 × 100 =
  2. 2.360.1 × 10 =
  3. 3.484.7 × 100 =
  4. 4.211.1 ÷ 1000 =
  5. 5.136.9 ÷ 1000 =
  6. 6.232.9 × 1000 =
  7. 7.6.33 ÷ 1000 =
  8. 8.102.6 ÷ 100 =
  9. 9.16.61 × 1000 =
  10. 10.15.39 × 10 =
  11. 11.257.1 × 10 =
  12. 12.74.1 ÷ 100 =
  13. 13.169.4 ÷ 10 =
  14. 14.28.71 × 1000 =
  15. 15.458.4 ÷ 10 =
  16. 16.266.8 ÷ 1000 =
  17. 17.210.8 ÷ 10 =
  18. 18.24.81 ÷ 100 =
  19. 19.28.88 × 1000 =
  20. 20.22.68 ÷ 100 =
  21. 21.11.54 × 10 =
  22. 22.25.31 ÷ 10 =
  23. 23.18.12 × 10 =
  24. 24.20.96 ÷ 10 =
  25. 25.4.17 ÷ 10 =
  26. 26.34.46 ÷ 1000 =
  27. 27.25.79 × 100 =
  28. 28.195.4 ÷ 10 =
  29. 29.13.63 × 10 =
  30. 30.419.1 × 1000 =
  31. 31.117.6 × 10 =
  32. 32.24.81 ÷ 10 =
  33. 33.136.6 ÷ 1000 =
  34. 34.281.5 ÷ 100 =
  35. 35.2.64 × 10 =
  36. 36.42.09 ÷ 100 =
  37. 37.343.8 ÷ 1000 =
  38. 38.151.1 × 10 =
  39. 39.24.06 × 100 =
  40. 40.18.99 ÷ 10 =

Answer key

  1. 11730
  2. 3601
  3. 48470
  4. 0.2111
  5. 0.1369
  6. 232900
  7. 0.00633
  8. 1.026
  9. 16610
  10. 153.9
  11. 2571
  12. 0.741
  13. 16.94
  14. 28710
  15. 45.84
  16. 0.2668
  17. 21.08
  18. 0.2481
  19. 28880
  20. 0.2268
  21. 115.4
  22. 2.531
  23. 181.2
  24. 2.096
  25. 0.417
  26. 0.03446
  27. 2579
  28. 19.54
  29. 136.3
  30. 419100
  31. 1176
  32. 2.481
  33. 0.1366
  34. 2.815
  35. 26.4
  36. 0.4209
  37. 0.3438
  38. 1511
  39. 2406
  40. 1.899

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