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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 77 · 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. 1.0.71 ÷ 1000 =
  2. 2.436.4 ÷ 1000 =
  3. 3.297.2 ÷ 100 =
  4. 4.31.5 × 100 =
  5. 5.70.2 ÷ 100 =
  6. 6.167.8 ÷ 10 =
  7. 7.71.5 × 100 =
  8. 8.296.7 ÷ 100 =
  9. 9.96.9 ÷ 10 =
  10. 10.48.03 × 100 =
  11. 11.20.33 ÷ 10 =
  12. 12.15.71 × 1000 =
  13. 13.460.8 × 1000 =
  14. 14.41.24 × 100 =
  15. 15.98.8 ÷ 1000 =
  16. 16.33.7 ÷ 10 =
  17. 17.10.84 × 100 =
  18. 18.1.23 × 1000 =
  19. 19.390.4 × 10 =
  20. 20.19.81 ÷ 1000 =
  21. 21.20.01 ÷ 1000 =
  22. 22.301.6 ÷ 100 =
  23. 23.5.63 × 1000 =
  24. 24.3.38 × 100 =
  25. 25.114.7 × 1000 =
  26. 26.10.23 ÷ 100 =
  27. 27.46.32 ÷ 100 =
  28. 28.206.1 ÷ 10 =
  29. 29.22.94 ÷ 10 =
  30. 30.26.45 ÷ 10 =
  31. 31.186.1 × 1000 =
  32. 32.41.21 ÷ 10 =
  33. 33.64.8 × 10 =
  34. 34.46.16 × 1000 =
  35. 35.237.5 ÷ 1000 =
  36. 36.0.57 × 100 =
  37. 37.240.6 ÷ 10 =
  38. 38.4.63 ÷ 1000 =
  39. 39.46.02 × 100 =
  40. 40.105.4 ÷ 10 =

Answer key

  1. 0.00071
  2. 0.4364
  3. 2.972
  4. 3150
  5. 0.702
  6. 16.78
  7. 7150
  8. 2.967
  9. 9.69
  10. 4803
  11. 2.033
  12. 15710
  13. 460800
  14. 4124
  15. 0.0988
  16. 3.37
  17. 1084
  18. 1230
  19. 3904
  20. 0.01981
  21. 0.02001
  22. 3.016
  23. 5630
  24. 338
  25. 114700
  26. 0.1023
  27. 0.4632
  28. 20.61
  29. 2.294
  30. 2.645
  31. 186100
  32. 4.121
  33. 648
  34. 46160
  35. 0.2375
  36. 57
  37. 24.06
  38. 0.00463
  39. 4602
  40. 10.54

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