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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 737 · 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. 1.29.99 × 1000 =
  2. 2.471.8 ÷ 10 =
  3. 3.98.1 ÷ 1000 =
  4. 4.145.8 × 100 =
  5. 5.12.35 × 100 =
  6. 6.66.4 ÷ 10 =
  7. 7.314.7 ÷ 1000 =
  8. 8.10.8 ÷ 100 =
  9. 9.42.33 × 1000 =
  10. 10.19.84 ÷ 1000 =
  11. 11.152.3 × 1000 =
  12. 12.112.6 × 10 =
  13. 13.274.7 × 10 =
  14. 14.11.21 × 10 =
  15. 15.102.2 × 1000 =
  16. 16.9.41 ÷ 10 =
  17. 17.186.1 × 10 =
  18. 18.31.11 × 100 =
  19. 19.175.4 ÷ 1000 =
  20. 20.355.1 ÷ 10 =
  21. 21.407.1 ÷ 10 =
  22. 22.446.5 ÷ 100 =
  23. 23.310.6 ÷ 1000 =
  24. 24.49.42 ÷ 10 =
  25. 25.1.68 × 1000 =
  26. 26.0.78 × 10 =
  27. 27.27.28 × 10 =
  28. 28.29.19 ÷ 1000 =
  29. 29.72.7 ÷ 10 =
  30. 30.12.82 ÷ 10 =
  31. 31.207.2 × 100 =
  32. 32.493.2 × 10 =
  33. 33.110.1 × 10 =
  34. 34.1.67 × 1000 =
  35. 35.41.31 × 10 =
  36. 36.252.2 × 10 =
  37. 37.9.85 × 100 =
  38. 38.49.43 ÷ 1000 =
  39. 39.475.6 × 10 =
  40. 40.22.1 ÷ 10 =

Answer key

  1. 29990
  2. 47.18
  3. 0.0981
  4. 14580
  5. 1235
  6. 6.64
  7. 0.3147
  8. 0.108
  9. 42330
  10. 0.01984
  11. 152300
  12. 1126
  13. 2747
  14. 112.1
  15. 102200
  16. 0.941
  17. 1861
  18. 3111
  19. 0.1754
  20. 35.51
  21. 40.71
  22. 4.465
  23. 0.3106
  24. 4.942
  25. 1680
  26. 7.8
  27. 272.8
  28. 0.02919
  29. 7.27
  30. 1.282
  31. 20720
  32. 4932
  33. 1101
  34. 1670
  35. 413.1
  36. 2522
  37. 985
  38. 0.04943
  39. 4756
  40. 2.21

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