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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 382 · 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. 1.29.02 ÷ 1000 =
  2. 2.7.61 × 100 =
  3. 3.244.9 ÷ 1000 =
  4. 4.107.6 ÷ 100 =
  5. 5.102.7 ÷ 1000 =
  6. 6.10.69 ÷ 1000 =
  7. 7.192.4 ÷ 10 =
  8. 8.493.1 ÷ 10 =
  9. 9.25.91 × 10 =
  10. 10.9.83 ÷ 100 =
  11. 11.46.07 ÷ 1000 =
  12. 12.56.5 × 1000 =
  13. 13.39.82 × 10 =
  14. 14.42.99 × 1000 =
  15. 15.349.7 × 100 =
  16. 16.498.2 ÷ 10 =
  17. 17.44.05 ÷ 100 =
  18. 18.32.81 × 100 =
  19. 19.41.62 × 10 =
  20. 20.31.81 ÷ 10 =
  21. 21.17.66 ÷ 100 =
  22. 22.75.9 ÷ 100 =
  23. 23.87.1 ÷ 100 =
  24. 24.349.5 × 100 =
  25. 25.49.17 ÷ 10 =
  26. 26.331.1 × 10 =
  27. 27.30.61 ÷ 1000 =
  28. 28.238.1 ÷ 10 =
  29. 29.7.66 ÷ 10 =
  30. 30.11.34 ÷ 10 =
  31. 31.384.8 × 1000 =
  32. 32.41.42 ÷ 10 =
  33. 33.81.7 × 10 =
  34. 34.27.74 × 10 =
  35. 35.126.7 ÷ 10 =
  36. 36.38.34 × 1000 =
  37. 37.4.67 × 1000 =
  38. 38.107.4 ÷ 100 =
  39. 39.22.02 ÷ 100 =
  40. 40.78.6 × 10 =

Answer key

  1. 0.02902
  2. 761
  3. 0.2449
  4. 1.076
  5. 0.1027
  6. 0.01069
  7. 19.24
  8. 49.31
  9. 259.1
  10. 0.0983
  11. 0.04607
  12. 56500
  13. 398.2
  14. 42990
  15. 34970
  16. 49.82
  17. 0.4405
  18. 3281
  19. 416.2
  20. 3.181
  21. 0.1766
  22. 0.759
  23. 0.871
  24. 34950
  25. 4.917
  26. 3311
  27. 0.03061
  28. 23.81
  29. 0.766
  30. 1.134
  31. 384800
  32. 4.142
  33. 817
  34. 277.4
  35. 12.67
  36. 38340
  37. 4670
  38. 1.074
  39. 0.2202
  40. 786

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