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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 536 · 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. 1.99.4 ÷ 10 =
  2. 2.498.4 ÷ 10 =
  3. 3.82.2 × 1000 =
  4. 4.37.99 × 10 =
  5. 5.26.52 ÷ 1000 =
  6. 6.225.1 ÷ 1000 =
  7. 7.168.4 × 1000 =
  8. 8.76.5 ÷ 1000 =
  9. 9.53.1 × 1000 =
  10. 10.46.09 ÷ 10 =
  11. 11.204.8 × 10 =
  12. 12.180.1 ÷ 100 =
  13. 13.304.7 × 100 =
  14. 14.96.8 × 10 =
  15. 15.103.9 ÷ 1000 =
  16. 16.6.28 ÷ 1000 =
  17. 17.475.4 ÷ 10 =
  18. 18.37.11 × 1000 =
  19. 19.252.7 × 1000 =
  20. 20.296.7 × 100 =
  21. 21.44.09 × 100 =
  22. 22.134.6 × 10 =
  23. 23.16.87 × 10 =
  24. 24.91.2 × 10 =
  25. 25.18.41 ÷ 100 =
  26. 26.0.14 ÷ 10 =
  27. 27.100.1 ÷ 10 =
  28. 28.213.1 × 1000 =
  29. 29.36.66 × 1000 =
  30. 30.29.17 × 1000 =
  31. 31.257.9 × 10 =
  32. 32.23.22 × 10 =
  33. 33.260.4 × 100 =
  34. 34.310.7 ÷ 100 =
  35. 35.28.3 ÷ 10 =
  36. 36.310.7 × 1000 =
  37. 37.14.9 ÷ 10 =
  38. 38.204.8 ÷ 100 =
  39. 39.37.82 ÷ 10 =
  40. 40.5.33 ÷ 10 =

Answer key

  1. 9.94
  2. 49.84
  3. 82200
  4. 379.9
  5. 0.02652
  6. 0.2251
  7. 168400
  8. 0.0765
  9. 53100
  10. 4.609
  11. 2048
  12. 1.801
  13. 30470
  14. 968
  15. 0.1039
  16. 0.00628
  17. 47.54
  18. 37110
  19. 252700
  20. 29670
  21. 4409
  22. 1346
  23. 168.7
  24. 912
  25. 0.1841
  26. 0.014
  27. 10.01
  28. 213100
  29. 36660
  30. 29170
  31. 2579
  32. 232.2
  33. 26040
  34. 3.107
  35. 2.83
  36. 310700
  37. 1.49
  38. 2.048
  39. 3.782
  40. 0.533

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