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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 690 · 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. 1.28.44 ÷ 100 =
  2. 2.15.19 ÷ 100 =
  3. 3.27.05 ÷ 10 =
  4. 4.22.39 ÷ 10 =
  5. 5.179.7 ÷ 10 =
  6. 6.23.76 × 1000 =
  7. 7.332.7 × 1000 =
  8. 8.41.7 ÷ 10 =
  9. 9.92.1 × 1000 =
  10. 10.256.4 × 10 =
  11. 11.31.17 × 100 =
  12. 12.11.55 × 100 =
  13. 13.213.2 ÷ 10 =
  14. 14.293.9 × 1000 =
  15. 15.335.4 × 10 =
  16. 16.245.9 ÷ 10 =
  17. 17.22.37 × 10 =
  18. 18.34.75 × 100 =
  19. 19.285.2 × 1000 =
  20. 20.408.9 ÷ 10 =
  21. 21.70.7 ÷ 100 =
  22. 22.8.14 ÷ 1000 =
  23. 23.259.6 ÷ 100 =
  24. 24.37.56 × 1000 =
  25. 25.14.77 ÷ 1000 =
  26. 26.26.1 × 100 =
  27. 27.357.5 × 1000 =
  28. 28.467.6 ÷ 1000 =
  29. 29.408.3 × 1000 =
  30. 30.59.3 × 10 =
  31. 31.38.97 ÷ 10 =
  32. 32.40.69 × 1000 =
  33. 33.3.65 × 100 =
  34. 34.124.4 ÷ 10 =
  35. 35.139.4 ÷ 10 =
  36. 36.154.7 × 1000 =
  37. 37.468.7 ÷ 10 =
  38. 38.107.1 × 10 =
  39. 39.405.5 ÷ 10 =
  40. 40.161.7 × 1000 =

Answer key

  1. 0.2844
  2. 0.1519
  3. 2.705
  4. 2.239
  5. 17.97
  6. 23760
  7. 332700
  8. 4.17
  9. 92100
  10. 2564
  11. 3117
  12. 1155
  13. 21.32
  14. 293900
  15. 3354
  16. 24.59
  17. 223.7
  18. 3475
  19. 285200
  20. 40.89
  21. 0.707
  22. 0.00814
  23. 2.596
  24. 37560
  25. 0.01477
  26. 2610
  27. 357500
  28. 0.4676
  29. 408300
  30. 593
  31. 3.897
  32. 40690
  33. 365
  34. 12.44
  35. 13.94
  36. 154700
  37. 46.87
  38. 1071
  39. 40.55
  40. 161700

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