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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 881 · 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. 1.167.1 × 1000 =
  2. 2.83.6 × 10 =
  3. 3.4.41 × 1000 =
  4. 4.100.2 × 1000 =
  5. 5.1.74 ÷ 100 =
  6. 6.3.35 × 1000 =
  7. 7.46.36 ÷ 10 =
  8. 8.43.89 × 1000 =
  9. 9.389.1 × 1000 =
  10. 10.26.04 × 1000 =
  11. 11.161.5 ÷ 10 =
  12. 12.202.7 ÷ 1000 =
  13. 13.47.5 ÷ 1000 =
  14. 14.73.2 ÷ 100 =
  15. 15.476.5 ÷ 100 =
  16. 16.28.95 × 100 =
  17. 17.16.76 ÷ 1000 =
  18. 18.7.31 ÷ 1000 =
  19. 19.0.15 ÷ 100 =
  20. 20.41.85 ÷ 10 =
  21. 21.36.65 ÷ 100 =
  22. 22.85.1 ÷ 10 =
  23. 23.12.93 × 100 =
  24. 24.340.5 × 1000 =
  25. 25.381.2 × 100 =
  26. 26.162.9 × 1000 =
  27. 27.287.6 × 10 =
  28. 28.362.3 ÷ 100 =
  29. 29.24.91 ÷ 100 =
  30. 30.200.1 ÷ 1000 =
  31. 31.155.1 ÷ 100 =
  32. 32.213.8 × 100 =
  33. 33.17.92 × 10 =
  34. 34.12.33 ÷ 10 =
  35. 35.17.91 ÷ 10 =
  36. 36.32.59 ÷ 10 =
  37. 37.30.6 ÷ 100 =
  38. 38.292.7 ÷ 10 =
  39. 39.9.7 × 10 =
  40. 40.460.1 ÷ 10 =

Answer key

  1. 167100
  2. 836
  3. 4410
  4. 100200
  5. 0.0174
  6. 3350
  7. 4.636
  8. 43890
  9. 389100
  10. 26040
  11. 16.15
  12. 0.2027
  13. 0.0475
  14. 0.732
  15. 4.765
  16. 2895
  17. 0.01676
  18. 0.00731
  19. 0.0015
  20. 4.185
  21. 0.3665
  22. 8.51
  23. 1293
  24. 340500
  25. 38120
  26. 162900
  27. 2876
  28. 3.623
  29. 0.2491
  30. 0.2001
  31. 1.551
  32. 21380
  33. 179.2
  34. 1.233
  35. 1.791
  36. 3.259
  37. 0.306
  38. 29.27
  39. 97
  40. 46.01

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