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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 903 · 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. 1.36.01 × 1000 =
  2. 2.428.1 × 100 =
  3. 3.6.34 ÷ 100 =
  4. 4.134.9 ÷ 10 =
  5. 5.210.7 × 100 =
  6. 6.6.38 ÷ 10 =
  7. 7.5.07 ÷ 100 =
  8. 8.2.81 × 10 =
  9. 9.30.41 ÷ 1000 =
  10. 10.5.4 ÷ 10 =
  11. 11.60.7 ÷ 1000 =
  12. 12.125.1 ÷ 1000 =
  13. 13.11.52 ÷ 1000 =
  14. 14.37.71 ÷ 1000 =
  15. 15.32.49 × 10 =
  16. 16.282.3 × 10 =
  17. 17.12.65 ÷ 10 =
  18. 18.407.2 × 10 =
  19. 19.410.5 × 100 =
  20. 20.28.48 × 1000 =
  21. 21.144.4 ÷ 1000 =
  22. 22.11.7 × 10 =
  23. 23.76.6 ÷ 10 =
  24. 24.33.05 ÷ 10 =
  25. 25.33.05 × 1000 =
  26. 26.9.66 × 10 =
  27. 27.368.3 × 1000 =
  28. 28.12.39 ÷ 10 =
  29. 29.6.54 × 10 =
  30. 30.7.31 ÷ 1000 =
  31. 31.79.9 × 1000 =
  32. 32.14.16 ÷ 10 =
  33. 33.208.7 ÷ 1000 =
  34. 34.30.68 ÷ 1000 =
  35. 35.130.9 × 10 =
  36. 36.11.87 × 100 =
  37. 37.102.8 ÷ 1000 =
  38. 38.4.18 × 100 =
  39. 39.281.1 ÷ 10 =
  40. 40.249.2 × 100 =

Answer key

  1. 36010
  2. 42810
  3. 0.0634
  4. 13.49
  5. 21070
  6. 0.638
  7. 0.0507
  8. 28.1
  9. 0.03041
  10. 0.54
  11. 0.0607
  12. 0.1251
  13. 0.01152
  14. 0.03771
  15. 324.9
  16. 2823
  17. 1.265
  18. 4072
  19. 41050
  20. 28480
  21. 0.1444
  22. 117
  23. 7.66
  24. 3.305
  25. 33050
  26. 96.6
  27. 368300
  28. 1.239
  29. 65.4
  30. 0.00731
  31. 79900
  32. 1.416
  33. 0.2087
  34. 0.03068
  35. 1309
  36. 1187
  37. 0.1028
  38. 418
  39. 28.11
  40. 24920

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