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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 373 · 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. 1.309.2 ÷ 1000 =
  2. 2.29.65 ÷ 10 =
  3. 3.192.9 ÷ 10 =
  4. 4.213.4 ÷ 1000 =
  5. 5.7.85 ÷ 1000 =
  6. 6.42.11 ÷ 1000 =
  7. 7.3.49 × 1000 =
  8. 8.80.7 ÷ 1000 =
  9. 9.45.1 ÷ 100 =
  10. 10.441.7 ÷ 100 =
  11. 11.10.12 ÷ 1000 =
  12. 12.11.34 ÷ 100 =
  13. 13.358.3 ÷ 1000 =
  14. 14.290.1 × 100 =
  15. 15.108.4 × 100 =
  16. 16.0.67 × 1000 =
  17. 17.45.96 ÷ 10 =
  18. 18.342.2 ÷ 10 =
  19. 19.10.89 × 100 =
  20. 20.420.1 × 1000 =
  21. 21.36.36 × 1000 =
  22. 22.15.33 ÷ 100 =
  23. 23.9.95 ÷ 1000 =
  24. 24.43.18 × 10 =
  25. 25.28.01 ÷ 1000 =
  26. 26.336.3 × 1000 =
  27. 27.14.76 ÷ 1000 =
  28. 28.326.1 ÷ 100 =
  29. 29.108.6 × 10 =
  30. 30.168.9 × 10 =
  31. 31.3.72 ÷ 10 =
  32. 32.173.7 ÷ 10 =
  33. 33.287.9 ÷ 10 =
  34. 34.1.59 × 1000 =
  35. 35.23.18 ÷ 100 =
  36. 36.19.31 × 10 =
  37. 37.25.46 × 1000 =
  38. 38.39.43 ÷ 10 =
  39. 39.394.2 × 10 =
  40. 40.484.4 × 10 =

Answer key

  1. 0.3092
  2. 2.965
  3. 19.29
  4. 0.2134
  5. 0.00785
  6. 0.04211
  7. 3490
  8. 0.0807
  9. 0.451
  10. 4.417
  11. 0.01012
  12. 0.1134
  13. 0.3583
  14. 29010
  15. 10840
  16. 670
  17. 4.596
  18. 34.22
  19. 1089
  20. 420100
  21. 36360
  22. 0.1533
  23. 0.00995
  24. 431.8
  25. 0.02801
  26. 336300
  27. 0.01476
  28. 3.261
  29. 1086
  30. 1689
  31. 0.372
  32. 17.37
  33. 28.79
  34. 1590
  35. 0.2318
  36. 193.1
  37. 25460
  38. 3.943
  39. 3942
  40. 4844

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