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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 287 · 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. 1.42.91 ÷ 1000 =
  2. 2.17.31 ÷ 100 =
  3. 3.108.1 × 1000 =
  4. 4.282.1 × 10 =
  5. 5.29.8 × 1000 =
  6. 6.40.67 × 100 =
  7. 7.117.3 × 1000 =
  8. 8.15.82 × 10 =
  9. 9.60.3 ÷ 10 =
  10. 10.21.1 × 1000 =
  11. 11.414.5 × 1000 =
  12. 12.2.6 × 1000 =
  13. 13.36.52 × 1000 =
  14. 14.258.1 × 100 =
  15. 15.163.9 ÷ 100 =
  16. 16.373.1 ÷ 1000 =
  17. 17.23.68 × 10 =
  18. 18.11.41 × 100 =
  19. 19.9.43 × 10 =
  20. 20.103.8 ÷ 10 =
  21. 21.493.5 ÷ 10 =
  22. 22.7.71 ÷ 10 =
  23. 23.14.91 ÷ 1000 =
  24. 24.280.3 × 10 =
  25. 25.16.01 ÷ 10 =
  26. 26.59.4 × 10 =
  27. 27.289.2 ÷ 1000 =
  28. 28.13.5 × 100 =
  29. 29.1.69 × 1000 =
  30. 30.4.21 ÷ 100 =
  31. 31.258.6 × 100 =
  32. 32.1.55 ÷ 1000 =
  33. 33.494.6 × 100 =
  34. 34.7.02 ÷ 100 =
  35. 35.15.59 × 100 =
  36. 36.18.64 ÷ 10 =
  37. 37.466.1 ÷ 100 =
  38. 38.233.1 × 10 =
  39. 39.3.99 ÷ 10 =
  40. 40.211.2 × 10 =

Answer key

  1. 0.04291
  2. 0.1731
  3. 108100
  4. 2821
  5. 29800
  6. 4067
  7. 117300
  8. 158.2
  9. 6.03
  10. 21100
  11. 414500
  12. 2600
  13. 36520
  14. 25810
  15. 1.639
  16. 0.3731
  17. 236.8
  18. 1141
  19. 94.3
  20. 10.38
  21. 49.35
  22. 0.771
  23. 0.01491
  24. 2803
  25. 1.601
  26. 594
  27. 0.2892
  28. 1350
  29. 1690
  30. 0.0421
  31. 25860
  32. 0.00155
  33. 49460
  34. 0.0702
  35. 1559
  36. 1.864
  37. 4.661
  38. 2331
  39. 0.399
  40. 2112

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