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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 249 · 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. 1.4.62 ÷ 10 =
  2. 2.96.7 ÷ 1000 =
  3. 3.45.52 × 10 =
  4. 4.300.7 × 100 =
  5. 5.136.1 × 100 =
  6. 6.37.33 ÷ 10 =
  7. 7.10.4 ÷ 10 =
  8. 8.396.6 ÷ 10 =
  9. 9.20.07 ÷ 10 =
  10. 10.19.15 ÷ 1000 =
  11. 11.7.68 × 100 =
  12. 12.41.32 × 10 =
  13. 13.125.5 × 10 =
  14. 14.37.11 × 1000 =
  15. 15.46.88 ÷ 100 =
  16. 16.279.4 × 100 =
  17. 17.49.3 × 100 =
  18. 18.1.52 ÷ 100 =
  19. 19.312.3 ÷ 1000 =
  20. 20.110.4 × 10 =
  21. 21.24.14 ÷ 1000 =
  22. 22.23.91 × 10 =
  23. 23.41.78 ÷ 10 =
  24. 24.34.83 × 10 =
  25. 25.8.71 × 1000 =
  26. 26.25.31 ÷ 100 =
  27. 27.13.82 ÷ 100 =
  28. 28.11.57 × 100 =
  29. 29.10.38 ÷ 1000 =
  30. 30.418.1 × 10 =
  31. 31.110.8 × 1000 =
  32. 32.291.6 ÷ 1000 =
  33. 33.380.6 × 10 =
  34. 34.19.06 × 100 =
  35. 35.326.9 ÷ 1000 =
  36. 36.388.6 × 10 =
  37. 37.96.1 ÷ 10 =
  38. 38.186.3 ÷ 1000 =
  39. 39.10.92 × 10 =
  40. 40.114.2 × 10 =

Answer key

  1. 0.462
  2. 0.0967
  3. 455.2
  4. 30070
  5. 13610
  6. 3.733
  7. 1.04
  8. 39.66
  9. 2.007
  10. 0.01915
  11. 768
  12. 413.2
  13. 1255
  14. 37110
  15. 0.4688
  16. 27940
  17. 4930
  18. 0.0152
  19. 0.3123
  20. 1104
  21. 0.02414
  22. 239.1
  23. 4.178
  24. 348.3
  25. 8710
  26. 0.2531
  27. 0.1382
  28. 1157
  29. 0.01038
  30. 4181
  31. 110800
  32. 0.2916
  33. 3806
  34. 1906
  35. 0.3269
  36. 3886
  37. 9.61
  38. 0.1863
  39. 109.2
  40. 1142

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