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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 882 · 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. 1.40.1 × 10 =
  2. 2.74.3 × 10 =
  3. 3.7.27 ÷ 10 =
  4. 4.41.49 × 1000 =
  5. 5.14.1 ÷ 1000 =
  6. 6.11.39 × 1000 =
  7. 7.88.1 ÷ 10 =
  8. 8.6.98 × 10 =
  9. 9.270.1 ÷ 10 =
  10. 10.166.7 × 1000 =
  11. 11.18.33 × 1000 =
  12. 12.57.6 ÷ 100 =
  13. 13.217.7 ÷ 100 =
  14. 14.259.4 × 1000 =
  15. 15.38.63 × 10 =
  16. 16.473.8 ÷ 100 =
  17. 17.499.1 × 10 =
  18. 18.185.3 × 1000 =
  19. 19.3.69 × 100 =
  20. 20.186.3 ÷ 1000 =
  21. 21.294.2 ÷ 10 =
  22. 22.22.77 × 10 =
  23. 23.155.9 × 100 =
  24. 24.38.89 ÷ 10 =
  25. 25.44.87 × 1000 =
  26. 26.13.91 × 1000 =
  27. 27.21.77 ÷ 1000 =
  28. 28.145.4 ÷ 10 =
  29. 29.44.76 × 100 =
  30. 30.223.2 × 1000 =
  31. 31.5.78 × 100 =
  32. 32.280.1 × 100 =
  33. 33.94.4 × 10 =
  34. 34.1.43 × 10 =
  35. 35.266.8 × 100 =
  36. 36.301.5 × 100 =
  37. 37.30.87 ÷ 10 =
  38. 38.392.2 × 1000 =
  39. 39.26.7 ÷ 1000 =
  40. 40.24.29 × 1000 =

Answer key

  1. 401
  2. 743
  3. 0.727
  4. 41490
  5. 0.0141
  6. 11390
  7. 8.81
  8. 69.8
  9. 27.01
  10. 166700
  11. 18330
  12. 0.576
  13. 2.177
  14. 259400
  15. 386.3
  16. 4.738
  17. 4991
  18. 185300
  19. 369
  20. 0.1863
  21. 29.42
  22. 227.7
  23. 15590
  24. 3.889
  25. 44870
  26. 13910
  27. 0.02177
  28. 14.54
  29. 4476
  30. 223200
  31. 578
  32. 28010
  33. 944
  34. 14.3
  35. 26680
  36. 30150
  37. 3.087
  38. 392200
  39. 0.0267
  40. 24290

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