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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 666 · 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. 1.46.67 ÷ 100 =
  2. 2.171.4 × 10 =
  3. 3.355.1 × 1000 =
  4. 4.9.6 × 10 =
  5. 5.148.1 ÷ 100 =
  6. 6.322.1 × 10 =
  7. 7.47.79 × 1000 =
  8. 8.395.1 ÷ 10 =
  9. 9.234.4 × 100 =
  10. 10.211.3 × 100 =
  11. 11.96.7 × 10 =
  12. 12.403.8 × 10 =
  13. 13.1.17 × 1000 =
  14. 14.36.7 × 100 =
  15. 15.18.46 × 10 =
  16. 16.11.31 × 100 =
  17. 17.217.3 × 100 =
  18. 18.45.59 ÷ 1000 =
  19. 19.57.3 × 10 =
  20. 20.179.2 ÷ 100 =
  21. 21.26.16 × 10 =
  22. 22.331.1 ÷ 1000 =
  23. 23.52.5 × 10 =
  24. 24.9.9 ÷ 100 =
  25. 25.6.11 × 100 =
  26. 26.450.6 × 1000 =
  27. 27.7.91 × 100 =
  28. 28.132.1 ÷ 1000 =
  29. 29.26.54 ÷ 1000 =
  30. 30.263.1 × 10 =
  31. 31.49.09 × 10 =
  32. 32.240.1 ÷ 100 =
  33. 33.38.92 × 1000 =
  34. 34.36.23 × 10 =
  35. 35.369.6 ÷ 10 =
  36. 36.107.3 ÷ 10 =
  37. 37.267.1 × 1000 =
  38. 38.333.5 ÷ 10 =
  39. 39.39.07 × 100 =
  40. 40.47.1 ÷ 100 =

Answer key

  1. 0.4667
  2. 1714
  3. 355100
  4. 96
  5. 1.481
  6. 3221
  7. 47790
  8. 39.51
  9. 23440
  10. 21130
  11. 967
  12. 4038
  13. 1170
  14. 3670
  15. 184.6
  16. 1131
  17. 21730
  18. 0.04559
  19. 573
  20. 1.792
  21. 261.6
  22. 0.3311
  23. 525
  24. 0.099
  25. 611
  26. 450600
  27. 791
  28. 0.1321
  29. 0.02654
  30. 2631
  31. 490.9
  32. 2.401
  33. 38920
  34. 362.3
  35. 36.96
  36. 10.73
  37. 267100
  38. 33.35
  39. 3907
  40. 0.471

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