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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 570 · 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. 1.26.6 × 1000 =
  2. 2.269.7 × 10 =
  3. 3.251.2 × 100 =
  4. 4.41.22 × 10 =
  5. 5.21.23 × 1000 =
  6. 6.221.7 × 1000 =
  7. 7.150.3 × 10 =
  8. 8.435.6 ÷ 1000 =
  9. 9.425.6 ÷ 10 =
  10. 10.358.3 × 100 =
  11. 11.2.25 ÷ 1000 =
  12. 12.262.1 × 1000 =
  13. 13.24.75 × 10 =
  14. 14.276.2 × 100 =
  15. 15.220.2 × 100 =
  16. 16.493.1 ÷ 10 =
  17. 17.9.61 × 10 =
  18. 18.315.8 ÷ 10 =
  19. 19.266.1 × 10 =
  20. 20.8.57 × 100 =
  21. 21.22.74 × 1000 =
  22. 22.45.03 × 10 =
  23. 23.36.95 ÷ 100 =
  24. 24.174.2 × 100 =
  25. 25.47.18 ÷ 100 =
  26. 26.454.5 × 1000 =
  27. 27.5.61 × 10 =
  28. 28.0.44 × 10 =
  29. 29.1.55 ÷ 1000 =
  30. 30.398.1 ÷ 10 =
  31. 31.40.34 ÷ 10 =
  32. 32.232.4 × 1000 =
  33. 33.496.2 × 10 =
  34. 34.36.04 × 10 =
  35. 35.46.09 × 10 =
  36. 36.100.7 × 10 =
  37. 37.248.3 ÷ 10 =
  38. 38.35.57 ÷ 10 =
  39. 39.271.9 × 1000 =
  40. 40.362.1 ÷ 1000 =

Answer key

  1. 26600
  2. 2697
  3. 25120
  4. 412.2
  5. 21230
  6. 221700
  7. 1503
  8. 0.4356
  9. 42.56
  10. 35830
  11. 0.00225
  12. 262100
  13. 247.5
  14. 27620
  15. 22020
  16. 49.31
  17. 96.1
  18. 31.58
  19. 2661
  20. 857
  21. 22740
  22. 450.3
  23. 0.3695
  24. 17420
  25. 0.4718
  26. 454500
  27. 56.1
  28. 4.4
  29. 0.00155
  30. 39.81
  31. 4.034
  32. 232400
  33. 4962
  34. 360.4
  35. 460.9
  36. 1007
  37. 24.83
  38. 3.557
  39. 271900
  40. 0.3621

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