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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 171 · 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. 1.27.14 ÷ 10 =
  2. 2.441.8 × 10 =
  3. 3.303.8 ÷ 1000 =
  4. 4.128.1 × 10 =
  5. 5.392.5 ÷ 10 =
  6. 6.25.16 ÷ 10 =
  7. 7.49.31 × 100 =
  8. 8.106.8 × 10 =
  9. 9.374.2 × 100 =
  10. 10.269.2 ÷ 100 =
  11. 11.65.3 × 1000 =
  12. 12.355.8 ÷ 100 =
  13. 13.49.28 × 10 =
  14. 14.319.3 × 100 =
  15. 15.363.6 × 10 =
  16. 16.15.44 × 100 =
  17. 17.332.8 ÷ 10 =
  18. 18.16.39 × 1000 =
  19. 19.47.16 ÷ 1000 =
  20. 20.398.4 × 1000 =
  21. 21.196.7 ÷ 1000 =
  22. 22.4.47 ÷ 100 =
  23. 23.13.63 ÷ 10 =
  24. 24.16.01 × 1000 =
  25. 25.155.2 × 1000 =
  26. 26.240.5 × 10 =
  27. 27.26.22 ÷ 10 =
  28. 28.447.6 × 100 =
  29. 29.471.6 ÷ 10 =
  30. 30.403.8 ÷ 10 =
  31. 31.15.28 × 1000 =
  32. 32.29.28 × 100 =
  33. 33.40.56 ÷ 10 =
  34. 34.138.3 ÷ 10 =
  35. 35.266.8 ÷ 100 =
  36. 36.12.47 ÷ 1000 =
  37. 37.13.53 ÷ 1000 =
  38. 38.40.01 ÷ 1000 =
  39. 39.17.38 × 10 =
  40. 40.48.99 ÷ 100 =

Answer key

  1. 2.714
  2. 4418
  3. 0.3038
  4. 1281
  5. 39.25
  6. 2.516
  7. 4931
  8. 1068
  9. 37420
  10. 2.692
  11. 65300
  12. 3.558
  13. 492.8
  14. 31930
  15. 3636
  16. 1544
  17. 33.28
  18. 16390
  19. 0.04716
  20. 398400
  21. 0.1967
  22. 0.0447
  23. 1.363
  24. 16010
  25. 155200
  26. 2405
  27. 2.622
  28. 44760
  29. 47.16
  30. 40.38
  31. 15280
  32. 2928
  33. 4.056
  34. 13.83
  35. 2.668
  36. 0.01247
  37. 0.01353
  38. 0.04001
  39. 173.8
  40. 0.4899

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