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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 312 · 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. 1.14.58 × 100 =
  2. 2.20.07 ÷ 100 =
  3. 3.90.7 ÷ 10 =
  4. 4.247.3 ÷ 10 =
  5. 5.26.9 ÷ 1000 =
  6. 6.49.62 ÷ 100 =
  7. 7.193.1 ÷ 100 =
  8. 8.19.1 ÷ 10 =
  9. 9.23.03 ÷ 1000 =
  10. 10.40.82 ÷ 1000 =
  11. 11.186.4 × 100 =
  12. 12.8.14 ÷ 100 =
  13. 13.93.3 ÷ 10 =
  14. 14.490.3 ÷ 10 =
  15. 15.33.97 ÷ 1000 =
  16. 16.47.96 ÷ 1000 =
  17. 17.469.1 × 100 =
  18. 18.153.6 × 100 =
  19. 19.144.7 × 100 =
  20. 20.38.63 × 10 =
  21. 21.339.5 × 1000 =
  22. 22.153.8 ÷ 100 =
  23. 23.8.5 ÷ 10 =
  24. 24.17.65 ÷ 10 =
  25. 25.9.67 × 100 =
  26. 26.37.96 ÷ 10 =
  27. 27.11.94 ÷ 100 =
  28. 28.23.95 × 10 =
  29. 29.11.64 × 10 =
  30. 30.36.6 × 1000 =
  31. 31.147.8 × 100 =
  32. 32.13.87 ÷ 100 =
  33. 33.14.1 ÷ 10 =
  34. 34.188.1 ÷ 10 =
  35. 35.201.9 × 10 =
  36. 36.13.02 × 1000 =
  37. 37.6.95 × 10 =
  38. 38.83.8 ÷ 10 =
  39. 39.157.2 ÷ 10 =
  40. 40.153.4 ÷ 10 =

Answer key

  1. 1458
  2. 0.2007
  3. 9.07
  4. 24.73
  5. 0.0269
  6. 0.4962
  7. 1.931
  8. 1.91
  9. 0.02303
  10. 0.04082
  11. 18640
  12. 0.0814
  13. 9.33
  14. 49.03
  15. 0.03397
  16. 0.04796
  17. 46910
  18. 15360
  19. 14470
  20. 386.3
  21. 339500
  22. 1.538
  23. 0.85
  24. 1.765
  25. 967
  26. 3.796
  27. 0.1194
  28. 239.5
  29. 116.4
  30. 36600
  31. 14780
  32. 0.1387
  33. 1.41
  34. 18.81
  35. 2019
  36. 13020
  37. 69.5
  38. 8.38
  39. 15.72
  40. 15.34

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