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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 278 · 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. 1.139.6 ÷ 100 =
  2. 2.135.6 × 100 =
  3. 3.473.2 ÷ 10 =
  4. 4.99.9 × 1000 =
  5. 5.31.54 × 100 =
  6. 6.154.4 ÷ 1000 =
  7. 7.498.2 ÷ 1000 =
  8. 8.0.41 ÷ 1000 =
  9. 9.29.61 ÷ 10 =
  10. 10.200.2 × 1000 =
  11. 11.30.36 × 100 =
  12. 12.31.62 × 10 =
  13. 13.85.2 × 1000 =
  14. 14.14.37 × 10 =
  15. 15.199.7 ÷ 1000 =
  16. 16.262.7 ÷ 10 =
  17. 17.7.49 ÷ 10 =
  18. 18.36.93 ÷ 1000 =
  19. 19.54.1 ÷ 10 =
  20. 20.42.51 × 1000 =
  21. 21.18.1 ÷ 10 =
  22. 22.35.52 ÷ 100 =
  23. 23.309.3 × 100 =
  24. 24.497.7 ÷ 100 =
  25. 25.42.46 × 1000 =
  26. 26.17.64 ÷ 1000 =
  27. 27.39.02 ÷ 100 =
  28. 28.497.9 × 1000 =
  29. 29.20.97 × 1000 =
  30. 30.392.6 × 100 =
  31. 31.40.11 ÷ 1000 =
  32. 32.57.7 ÷ 100 =
  33. 33.371.1 × 1000 =
  34. 34.348.6 × 10 =
  35. 35.29.93 ÷ 1000 =
  36. 36.231.3 × 100 =
  37. 37.13.65 ÷ 10 =
  38. 38.49.45 ÷ 100 =
  39. 39.372.1 ÷ 10 =
  40. 40.40.01 ÷ 10 =

Answer key

  1. 1.396
  2. 13560
  3. 47.32
  4. 99900
  5. 3154
  6. 0.1544
  7. 0.4982
  8. 0.00041
  9. 2.961
  10. 200200
  11. 3036
  12. 316.2
  13. 85200
  14. 143.7
  15. 0.1997
  16. 26.27
  17. 0.749
  18. 0.03693
  19. 5.41
  20. 42510
  21. 1.81
  22. 0.3552
  23. 30930
  24. 4.977
  25. 42460
  26. 0.01764
  27. 0.3902
  28. 497900
  29. 20970
  30. 39260
  31. 0.04011
  32. 0.577
  33. 371100
  34. 3486
  35. 0.02993
  36. 23130
  37. 1.365
  38. 0.4945
  39. 37.21
  40. 4.001

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