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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 433 · 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. 1.249.4 ÷ 10 =
  2. 2.29.4 ÷ 1000 =
  3. 3.342.1 ÷ 100 =
  4. 4.473.4 × 100 =
  5. 5.301.4 × 10 =
  6. 6.20.63 × 100 =
  7. 7.430.8 ÷ 1000 =
  8. 8.400.1 × 10 =
  9. 9.36.46 ÷ 100 =
  10. 10.304.5 × 10 =
  11. 11.45.56 × 1000 =
  12. 12.56.1 ÷ 100 =
  13. 13.185.8 × 100 =
  14. 14.332.1 × 10 =
  15. 15.371.9 × 10 =
  16. 16.430.1 × 100 =
  17. 17.4.54 × 100 =
  18. 18.29.07 ÷ 1000 =
  19. 19.6.08 ÷ 1000 =
  20. 20.14.57 × 100 =
  21. 21.42.41 ÷ 10 =
  22. 22.398.1 ÷ 1000 =
  23. 23.29.37 × 1000 =
  24. 24.8.16 ÷ 100 =
  25. 25.26.53 × 1000 =
  26. 26.31.21 × 1000 =
  27. 27.16.38 × 1000 =
  28. 28.38.67 ÷ 10 =
  29. 29.369.8 ÷ 100 =
  30. 30.497.9 ÷ 100 =
  31. 31.33.54 × 10 =
  32. 32.42.25 × 100 =
  33. 33.8.48 × 100 =
  34. 34.42.92 × 10 =
  35. 35.26.31 ÷ 10 =
  36. 36.112.9 ÷ 10 =
  37. 37.289.1 × 10 =
  38. 38.459.2 × 10 =
  39. 39.41.77 ÷ 1000 =
  40. 40.165.9 × 10 =

Answer key

  1. 24.94
  2. 0.0294
  3. 3.421
  4. 47340
  5. 3014
  6. 2063
  7. 0.4308
  8. 4001
  9. 0.3646
  10. 3045
  11. 45560
  12. 0.561
  13. 18580
  14. 3321
  15. 3719
  16. 43010
  17. 454
  18. 0.02907
  19. 0.00608
  20. 1457
  21. 4.241
  22. 0.3981
  23. 29370
  24. 0.0816
  25. 26530
  26. 31210
  27. 16380
  28. 3.867
  29. 3.698
  30. 4.979
  31. 335.4
  32. 4225
  33. 848
  34. 429.2
  35. 2.631
  36. 11.29
  37. 2891
  38. 4592
  39. 0.04177
  40. 1659

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