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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 209 · 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. 1.46.51 × 10 =
  2. 2.170.2 ÷ 100 =
  3. 3.7.94 × 10 =
  4. 4.421.8 ÷ 10 =
  5. 5.247.3 × 1000 =
  6. 6.10.11 ÷ 10 =
  7. 7.0.81 × 1000 =
  8. 8.9.14 ÷ 10 =
  9. 9.307.3 × 100 =
  10. 10.241.3 ÷ 10 =
  11. 11.46.19 ÷ 100 =
  12. 12.7.13 ÷ 1000 =
  13. 13.196.7 ÷ 10 =
  14. 14.135.2 ÷ 100 =
  15. 15.414.1 ÷ 100 =
  16. 16.290.1 ÷ 10 =
  17. 17.42.48 ÷ 100 =
  18. 18.65.8 ÷ 10 =
  19. 19.346.3 × 1000 =
  20. 20.39.57 × 100 =
  21. 21.30.71 × 1000 =
  22. 22.154.5 ÷ 10 =
  23. 23.8.02 ÷ 1000 =
  24. 24.34.91 ÷ 10 =
  25. 25.11.05 × 10 =
  26. 26.26.01 ÷ 100 =
  27. 27.31.71 ÷ 10 =
  28. 28.239.8 × 10 =
  29. 29.395.3 × 10 =
  30. 30.0.36 × 1000 =
  31. 31.143.7 × 10 =
  32. 32.35.99 ÷ 10 =
  33. 33.274.1 × 100 =
  34. 34.222.1 ÷ 100 =
  35. 35.40.21 × 100 =
  36. 36.42.17 ÷ 1000 =
  37. 37.46.09 × 10 =
  38. 38.34.81 ÷ 1000 =
  39. 39.46.07 ÷ 1000 =
  40. 40.494.6 × 10 =

Answer key

  1. 465.1
  2. 1.702
  3. 79.4
  4. 42.18
  5. 247300
  6. 1.011
  7. 810
  8. 0.914
  9. 30730
  10. 24.13
  11. 0.4619
  12. 0.00713
  13. 19.67
  14. 1.352
  15. 4.141
  16. 29.01
  17. 0.4248
  18. 6.58
  19. 346300
  20. 3957
  21. 30710
  22. 15.45
  23. 0.00802
  24. 3.491
  25. 110.5
  26. 0.2601
  27. 3.171
  28. 2398
  29. 3953
  30. 360
  31. 1437
  32. 3.599
  33. 27410
  34. 2.221
  35. 4021
  36. 0.04217
  37. 460.9
  38. 0.03481
  39. 0.04607
  40. 4946

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