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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 962 · 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. 1.357.5 ÷ 10 =
  2. 2.467.9 × 100 =
  3. 3.21.81 × 10 =
  4. 4.2.15 ÷ 1000 =
  5. 5.335.6 × 1000 =
  6. 6.107.1 × 1000 =
  7. 7.222.6 × 100 =
  8. 8.21.66 ÷ 100 =
  9. 9.56.8 × 1000 =
  10. 10.416.7 × 1000 =
  11. 11.135.8 × 1000 =
  12. 12.17.75 ÷ 1000 =
  13. 13.12.57 × 100 =
  14. 14.451.9 × 100 =
  15. 15.90.4 ÷ 10 =
  16. 16.268.8 ÷ 100 =
  17. 17.40.89 × 1000 =
  18. 18.41.01 ÷ 10 =
  19. 19.16.05 ÷ 100 =
  20. 20.16.76 × 100 =
  21. 21.46.35 × 1000 =
  22. 22.172.4 × 1000 =
  23. 23.22.9 ÷ 1000 =
  24. 24.32.7 ÷ 1000 =
  25. 25.23.07 × 100 =
  26. 26.44.7 × 100 =
  27. 27.131.6 × 10 =
  28. 28.39.64 ÷ 100 =
  29. 29.72.7 ÷ 100 =
  30. 30.41.51 ÷ 1000 =
  31. 31.439.2 × 1000 =
  32. 32.37.18 × 100 =
  33. 33.47.83 × 1000 =
  34. 34.111.8 × 100 =
  35. 35.20.12 ÷ 1000 =
  36. 36.2.39 × 1000 =
  37. 37.9.51 ÷ 1000 =
  38. 38.34.78 ÷ 10 =
  39. 39.254.2 ÷ 100 =
  40. 40.20.18 × 10 =

Answer key

  1. 35.75
  2. 46790
  3. 218.1
  4. 0.00215
  5. 335600
  6. 107100
  7. 22260
  8. 0.2166
  9. 56800
  10. 416700
  11. 135800
  12. 0.01775
  13. 1257
  14. 45190
  15. 9.04
  16. 2.688
  17. 40890
  18. 4.101
  19. 0.1605
  20. 1676
  21. 46350
  22. 172400
  23. 0.0229
  24. 0.0327
  25. 2307
  26. 4470
  27. 1316
  28. 0.3964
  29. 0.727
  30. 0.04151
  31. 439200
  32. 3718
  33. 47830
  34. 11180
  35. 0.02012
  36. 2390
  37. 0.00951
  38. 3.478
  39. 2.542
  40. 201.8

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