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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 456 · 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. 1.11.89 ÷ 100 =
  2. 2.34.99 × 1000 =
  3. 3.23.36 × 1000 =
  4. 4.16.9 ÷ 1000 =
  5. 5.45.67 × 10 =
  6. 6.10.61 × 100 =
  7. 7.131.1 ÷ 10 =
  8. 8.178.3 × 1000 =
  9. 9.41.34 × 10 =
  10. 10.418.4 × 1000 =
  11. 11.48.51 × 1000 =
  12. 12.261.3 × 1000 =
  13. 13.12.53 × 10 =
  14. 14.40.1 ÷ 1000 =
  15. 15.334.2 ÷ 100 =
  16. 16.27.06 × 100 =
  17. 17.35.76 × 10 =
  18. 18.15.09 ÷ 1000 =
  19. 19.98.4 × 1000 =
  20. 20.40.41 × 1000 =
  21. 21.303.4 × 1000 =
  22. 22.432.8 ÷ 100 =
  23. 23.42.11 × 1000 =
  24. 24.73.4 ÷ 1000 =
  25. 25.6.65 × 100 =
  26. 26.37.8 ÷ 1000 =
  27. 27.22.83 × 100 =
  28. 28.49.76 ÷ 1000 =
  29. 29.31.19 ÷ 10 =
  30. 30.173.6 ÷ 1000 =
  31. 31.22.55 ÷ 1000 =
  32. 32.27.62 ÷ 100 =
  33. 33.209.5 × 10 =
  34. 34.7.26 × 100 =
  35. 35.419.8 × 10 =
  36. 36.33.71 ÷ 10 =
  37. 37.46.41 ÷ 1000 =
  38. 38.23.28 × 1000 =
  39. 39.15.75 × 1000 =
  40. 40.46.15 ÷ 1000 =

Answer key

  1. 0.1189
  2. 34990
  3. 23360
  4. 0.0169
  5. 456.7
  6. 1061
  7. 13.11
  8. 178300
  9. 413.4
  10. 418400
  11. 48510
  12. 261300
  13. 125.3
  14. 0.0401
  15. 3.342
  16. 2706
  17. 357.6
  18. 0.01509
  19. 98400
  20. 40410
  21. 303400
  22. 4.328
  23. 42110
  24. 0.0734
  25. 665
  26. 0.0378
  27. 2283
  28. 0.04976
  29. 3.119
  30. 0.1736
  31. 0.02255
  32. 0.2762
  33. 2095
  34. 726
  35. 4198
  36. 3.371
  37. 0.04641
  38. 23280
  39. 15750
  40. 0.04615

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