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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 877 · 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. 1.334.8 × 10 =
  2. 2.210.6 × 10 =
  3. 3.24.33 × 10 =
  4. 4.3.61 × 1000 =
  5. 5.42.24 ÷ 1000 =
  6. 6.28.47 × 1000 =
  7. 7.212.6 ÷ 1000 =
  8. 8.467.4 × 10 =
  9. 9.19.48 × 100 =
  10. 10.68.5 ÷ 100 =
  11. 11.272.4 ÷ 10 =
  12. 12.1.48 × 100 =
  13. 13.27.93 ÷ 100 =
  14. 14.31.31 × 10 =
  15. 15.207.7 × 10 =
  16. 16.16.42 ÷ 1000 =
  17. 17.381.2 ÷ 100 =
  18. 18.18.14 × 10 =
  19. 19.16.61 × 10 =
  20. 20.464.1 ÷ 100 =
  21. 21.199.7 ÷ 100 =
  22. 22.20.85 ÷ 100 =
  23. 23.173.7 ÷ 1000 =
  24. 24.49.79 × 1000 =
  25. 25.320.5 ÷ 10 =
  26. 26.20.99 ÷ 100 =
  27. 27.88.8 × 1000 =
  28. 28.14.7 × 10 =
  29. 29.1.71 ÷ 100 =
  30. 30.9.69 × 10 =
  31. 31.29.07 × 1000 =
  32. 32.49.43 × 100 =
  33. 33.25.99 ÷ 100 =
  34. 34.477.4 × 10 =
  35. 35.21.38 ÷ 1000 =
  36. 36.104.3 ÷ 1000 =
  37. 37.264.6 × 1000 =
  38. 38.300.1 × 10 =
  39. 39.12.1 × 100 =
  40. 40.449.9 ÷ 10 =

Answer key

  1. 3348
  2. 2106
  3. 243.3
  4. 3610
  5. 0.04224
  6. 28470
  7. 0.2126
  8. 4674
  9. 1948
  10. 0.685
  11. 27.24
  12. 148
  13. 0.2793
  14. 313.1
  15. 2077
  16. 0.01642
  17. 3.812
  18. 181.4
  19. 166.1
  20. 4.641
  21. 1.997
  22. 0.2085
  23. 0.1737
  24. 49790
  25. 32.05
  26. 0.2099
  27. 88800
  28. 147
  29. 0.0171
  30. 96.9
  31. 29070
  32. 4943
  33. 0.2599
  34. 4774
  35. 0.02138
  36. 0.1043
  37. 264600
  38. 3001
  39. 1210
  40. 44.99

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