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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 791 · 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. 1.17.09 ÷ 1000 =
  2. 2.29.71 × 1000 =
  3. 3.42.63 ÷ 10 =
  4. 4.29.5 ÷ 10 =
  5. 5.14.59 ÷ 100 =
  6. 6.401.6 × 100 =
  7. 7.35.91 × 10 =
  8. 8.409.6 × 10 =
  9. 9.426.1 ÷ 100 =
  10. 10.453.5 × 10 =
  11. 11.175.4 × 100 =
  12. 12.8.15 × 100 =
  13. 13.134.5 × 100 =
  14. 14.7.55 ÷ 100 =
  15. 15.6.42 ÷ 1000 =
  16. 16.48.44 × 10 =
  17. 17.14.81 × 1000 =
  18. 18.6.3 × 10 =
  19. 19.292.2 × 1000 =
  20. 20.405.6 ÷ 1000 =
  21. 21.44.61 × 10 =
  22. 22.8.81 × 100 =
  23. 23.49.34 ÷ 100 =
  24. 24.17.9 × 10 =
  25. 25.27.29 × 100 =
  26. 26.243.3 × 1000 =
  27. 27.148.5 × 10 =
  28. 28.3.03 × 1000 =
  29. 29.15.5 ÷ 10 =
  30. 30.191.1 ÷ 1000 =
  31. 31.49.14 ÷ 1000 =
  32. 32.174.8 × 10 =
  33. 33.235.1 × 10 =
  34. 34.31.39 × 10 =
  35. 35.99.6 ÷ 100 =
  36. 36.14.2 × 10 =
  37. 37.51.1 ÷ 1000 =
  38. 38.376.2 × 100 =
  39. 39.57.1 × 1000 =
  40. 40.40.61 ÷ 1000 =

Answer key

  1. 0.01709
  2. 29710
  3. 4.263
  4. 2.95
  5. 0.1459
  6. 40160
  7. 359.1
  8. 4096
  9. 4.261
  10. 4535
  11. 17540
  12. 815
  13. 13450
  14. 0.0755
  15. 0.00642
  16. 484.4
  17. 14810
  18. 63
  19. 292200
  20. 0.4056
  21. 446.1
  22. 881
  23. 0.4934
  24. 179
  25. 2729
  26. 243300
  27. 1485
  28. 3030
  29. 1.55
  30. 0.1911
  31. 0.04914
  32. 1748
  33. 2351
  34. 313.9
  35. 0.996
  36. 142
  37. 0.0511
  38. 37620
  39. 57100
  40. 0.04061

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