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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 796 · 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. 1.3.74 × 10 =
  2. 2.47.91 ÷ 1000 =
  3. 3.63.7 × 1000 =
  4. 4.400.5 × 10 =
  5. 5.6.4 ÷ 1000 =
  6. 6.21.33 × 10 =
  7. 7.23.7 ÷ 1000 =
  8. 8.4.81 × 100 =
  9. 9.24.84 × 1000 =
  10. 10.203.2 × 10 =
  11. 11.296.5 ÷ 100 =
  12. 12.239.5 ÷ 10 =
  13. 13.289.4 × 100 =
  14. 14.48.72 × 100 =
  15. 15.180.7 × 10 =
  16. 16.3.62 ÷ 1000 =
  17. 17.13.73 × 10 =
  18. 18.26.73 × 100 =
  19. 19.15.43 ÷ 1000 =
  20. 20.19.25 ÷ 1000 =
  21. 21.466.7 × 100 =
  22. 22.299.1 × 100 =
  23. 23.8.92 ÷ 10 =
  24. 24.7.48 ÷ 100 =
  25. 25.239.8 ÷ 100 =
  26. 26.31.35 × 1000 =
  27. 27.6.84 × 1000 =
  28. 28.223.1 × 10 =
  29. 29.436.9 ÷ 100 =
  30. 30.99.9 × 10 =
  31. 31.4.4 × 100 =
  32. 32.12.89 × 1000 =
  33. 33.479.6 ÷ 1000 =
  34. 34.463.9 × 100 =
  35. 35.12.78 × 10 =
  36. 36.41.83 × 1000 =
  37. 37.103.1 × 1000 =
  38. 38.12.01 × 100 =
  39. 39.24.33 × 100 =
  40. 40.361.6 ÷ 100 =

Answer key

  1. 37.4
  2. 0.04791
  3. 63700
  4. 4005
  5. 0.0064
  6. 213.3
  7. 0.0237
  8. 481
  9. 24840
  10. 2032
  11. 2.965
  12. 23.95
  13. 28940
  14. 4872
  15. 1807
  16. 0.00362
  17. 137.3
  18. 2673
  19. 0.01543
  20. 0.01925
  21. 46670
  22. 29910
  23. 0.892
  24. 0.0748
  25. 2.398
  26. 31350
  27. 6840
  28. 2231
  29. 4.369
  30. 999
  31. 440
  32. 12890
  33. 0.4796
  34. 46390
  35. 127.8
  36. 41830
  37. 103100
  38. 1201
  39. 2433
  40. 3.616

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