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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 850 · 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. 1.480.4 × 10 =
  2. 2.86.6 × 1000 =
  3. 3.473.7 × 10 =
  4. 4.43.22 ÷ 1000 =
  5. 5.35.25 ÷ 10 =
  6. 6.349.5 ÷ 10 =
  7. 7.0.18 ÷ 1000 =
  8. 8.20.61 ÷ 10 =
  9. 9.10.17 ÷ 1000 =
  10. 10.47.67 ÷ 1000 =
  11. 11.43.46 ÷ 10 =
  12. 12.2.93 ÷ 10 =
  13. 13.439.4 ÷ 1000 =
  14. 14.47.61 × 10 =
  15. 15.82.1 × 10 =
  16. 16.356.3 × 10 =
  17. 17.17.38 ÷ 1000 =
  18. 18.371.7 × 10 =
  19. 19.23.94 × 1000 =
  20. 20.432.6 ÷ 100 =
  21. 21.3.34 × 100 =
  22. 22.17.97 ÷ 10 =
  23. 23.12.09 ÷ 10 =
  24. 24.2.01 ÷ 10 =
  25. 25.174.2 × 1000 =
  26. 26.300.1 × 10 =
  27. 27.10.94 ÷ 10 =
  28. 28.357.5 ÷ 10 =
  29. 29.185.9 × 10 =
  30. 30.292.2 × 1000 =
  31. 31.360.7 × 10 =
  32. 32.36.41 × 10 =
  33. 33.44.45 ÷ 1000 =
  34. 34.11.21 ÷ 1000 =
  35. 35.340.4 ÷ 100 =
  36. 36.2.78 × 1000 =
  37. 37.19.11 ÷ 1000 =
  38. 38.278.7 × 1000 =
  39. 39.23.67 × 1000 =
  40. 40.315.4 × 100 =

Answer key

  1. 4804
  2. 86600
  3. 4737
  4. 0.04322
  5. 3.525
  6. 34.95
  7. 0.00018
  8. 2.061
  9. 0.01017
  10. 0.04767
  11. 4.346
  12. 0.293
  13. 0.4394
  14. 476.1
  15. 821
  16. 3563
  17. 0.01738
  18. 3717
  19. 23940
  20. 4.326
  21. 334
  22. 1.797
  23. 1.209
  24. 0.201
  25. 174200
  26. 3001
  27. 1.094
  28. 35.75
  29. 1859
  30. 292200
  31. 3607
  32. 364.1
  33. 0.04445
  34. 0.01121
  35. 3.404
  36. 2780
  37. 0.01911
  38. 278700
  39. 23670
  40. 31540

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