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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 168 · 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. 1.106.5 ÷ 1000 =
  2. 2.334.3 ÷ 100 =
  3. 3.18.7 ÷ 100 =
  4. 4.12.11 × 10 =
  5. 5.4.64 ÷ 100 =
  6. 6.39.1 ÷ 10 =
  7. 7.133.9 ÷ 100 =
  8. 8.23.19 ÷ 1000 =
  9. 9.9.94 × 100 =
  10. 10.32.27 ÷ 10 =
  11. 11.35.72 × 1000 =
  12. 12.490.4 × 100 =
  13. 13.23.96 × 100 =
  14. 14.346.1 ÷ 1000 =
  15. 15.475.9 ÷ 10 =
  16. 16.14.27 ÷ 10 =
  17. 17.61.5 ÷ 10 =
  18. 18.43.41 × 100 =
  19. 19.461.3 ÷ 10 =
  20. 20.156.6 ÷ 10 =
  21. 21.7.77 × 10 =
  22. 22.480.1 ÷ 1000 =
  23. 23.206.3 ÷ 100 =
  24. 24.143.6 ÷ 100 =
  25. 25.46.92 ÷ 10 =
  26. 26.30.33 ÷ 10 =
  27. 27.131.6 ÷ 10 =
  28. 28.398.1 ÷ 10 =
  29. 29.8.41 ÷ 100 =
  30. 30.14.7 ÷ 10 =
  31. 31.434.2 × 100 =
  32. 32.48.05 × 100 =
  33. 33.211.2 ÷ 1000 =
  34. 34.137.2 × 10 =
  35. 35.25.9 ÷ 10 =
  36. 36.8.88 × 100 =
  37. 37.84.8 × 10 =
  38. 38.25.06 ÷ 10 =
  39. 39.42.18 ÷ 100 =
  40. 40.4.46 × 1000 =

Answer key

  1. 0.1065
  2. 3.343
  3. 0.187
  4. 121.1
  5. 0.0464
  6. 3.91
  7. 1.339
  8. 0.02319
  9. 994
  10. 3.227
  11. 35720
  12. 49040
  13. 2396
  14. 0.3461
  15. 47.59
  16. 1.427
  17. 6.15
  18. 4341
  19. 46.13
  20. 15.66
  21. 77.7
  22. 0.4801
  23. 2.063
  24. 1.436
  25. 4.692
  26. 3.033
  27. 13.16
  28. 39.81
  29. 0.0841
  30. 1.47
  31. 43420
  32. 4805
  33. 0.2112
  34. 1372
  35. 2.59
  36. 888
  37. 848
  38. 2.506
  39. 0.4218
  40. 4460

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