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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 399 · 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. 1.47.88 ÷ 10 =
  2. 2.33.41 ÷ 1000 =
  3. 3.106.4 × 100 =
  4. 4.229.5 ÷ 100 =
  5. 5.450.6 ÷ 100 =
  6. 6.30.99 ÷ 1000 =
  7. 7.281.2 ÷ 100 =
  8. 8.43.4 × 100 =
  9. 9.23.31 × 10 =
  10. 10.167.7 ÷ 100 =
  11. 11.47.67 ÷ 10 =
  12. 12.15.12 × 10 =
  13. 13.4.03 × 1000 =
  14. 14.442.3 × 100 =
  15. 15.125.6 × 10 =
  16. 16.326.9 ÷ 10 =
  17. 17.20.77 ÷ 1000 =
  18. 18.20.44 × 100 =
  19. 19.79.9 ÷ 10 =
  20. 20.64.3 ÷ 10 =
  21. 21.457.8 × 1000 =
  22. 22.35.64 ÷ 100 =
  23. 23.318.8 ÷ 10 =
  24. 24.13.32 ÷ 10 =
  25. 25.395.3 × 10 =
  26. 26.3.61 ÷ 1000 =
  27. 27.47.18 × 100 =
  28. 28.109.3 × 10 =
  29. 29.433.9 ÷ 10 =
  30. 30.194.8 ÷ 1000 =
  31. 31.11.07 ÷ 1000 =
  32. 32.16.85 ÷ 10 =
  33. 33.22.42 ÷ 10 =
  34. 34.201.7 ÷ 100 =
  35. 35.227.1 × 1000 =
  36. 36.314.2 ÷ 1000 =
  37. 37.300.3 ÷ 10 =
  38. 38.41.53 ÷ 10 =
  39. 39.436.7 × 100 =
  40. 40.1.48 ÷ 10 =

Answer key

  1. 4.788
  2. 0.03341
  3. 10640
  4. 2.295
  5. 4.506
  6. 0.03099
  7. 2.812
  8. 4340
  9. 233.1
  10. 1.677
  11. 4.767
  12. 151.2
  13. 4030
  14. 44230
  15. 1256
  16. 32.69
  17. 0.02077
  18. 2044
  19. 7.99
  20. 6.43
  21. 457800
  22. 0.3564
  23. 31.88
  24. 1.332
  25. 3953
  26. 0.00361
  27. 4718
  28. 1093
  29. 43.39
  30. 0.1948
  31. 0.01107
  32. 1.685
  33. 2.242
  34. 2.017
  35. 227100
  36. 0.3142
  37. 30.03
  38. 4.153
  39. 43670
  40. 0.148

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