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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 173 · 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. 1.5.16 ÷ 1000 =
  2. 2.48.76 × 100 =
  3. 3.16.4 × 10 =
  4. 4.7.05 ÷ 10 =
  5. 5.12.21 ÷ 1000 =
  6. 6.435.1 ÷ 100 =
  7. 7.32.11 × 100 =
  8. 8.149.8 ÷ 100 =
  9. 9.36.14 × 100 =
  10. 10.8.37 × 10 =
  11. 11.28.92 ÷ 1000 =
  12. 12.34.55 × 1000 =
  13. 13.17.4 ÷ 10 =
  14. 14.142.1 × 100 =
  15. 15.3.67 × 1000 =
  16. 16.42.63 × 1000 =
  17. 17.14.77 ÷ 1000 =
  18. 18.143.3 ÷ 1000 =
  19. 19.210.6 × 100 =
  20. 20.42.17 ÷ 10 =
  21. 21.11.21 × 10 =
  22. 22.228.7 × 10 =
  23. 23.95.7 ÷ 100 =
  24. 24.460.4 × 1000 =
  25. 25.38.6 ÷ 100 =
  26. 26.66.2 × 10 =
  27. 27.11.02 ÷ 10 =
  28. 28.10.1 × 100 =
  29. 29.23.14 ÷ 10 =
  30. 30.114.3 × 100 =
  31. 31.322.1 × 10 =
  32. 32.41.11 ÷ 100 =
  33. 33.105.9 ÷ 10 =
  34. 34.45.49 × 100 =
  35. 35.1.36 ÷ 100 =
  36. 36.33.2 × 10 =
  37. 37.32.2 ÷ 100 =
  38. 38.196.6 ÷ 100 =
  39. 39.11.28 × 1000 =
  40. 40.24.96 ÷ 10 =

Answer key

  1. 0.00516
  2. 4876
  3. 164
  4. 0.705
  5. 0.01221
  6. 4.351
  7. 3211
  8. 1.498
  9. 3614
  10. 83.7
  11. 0.02892
  12. 34550
  13. 1.74
  14. 14210
  15. 3670
  16. 42630
  17. 0.01477
  18. 0.1433
  19. 21060
  20. 4.217
  21. 112.1
  22. 2287
  23. 0.957
  24. 460400
  25. 0.386
  26. 662
  27. 1.102
  28. 1010
  29. 2.314
  30. 11430
  31. 3221
  32. 0.4111
  33. 10.59
  34. 4549
  35. 0.0136
  36. 332
  37. 0.322
  38. 1.966
  39. 11280
  40. 2.496

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