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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 984 · 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. 1.155.4 ÷ 100 =
  2. 2.15.26 ÷ 10 =
  3. 3.191.3 × 100 =
  4. 4.19.16 × 100 =
  5. 5.109.1 ÷ 10 =
  6. 6.87.5 ÷ 10 =
  7. 7.475.1 ÷ 1000 =
  8. 8.102.8 × 100 =
  9. 9.20.98 × 100 =
  10. 10.27.23 ÷ 1000 =
  11. 11.430.5 ÷ 1000 =
  12. 12.36.11 × 100 =
  13. 13.440.1 ÷ 100 =
  14. 14.43.97 × 100 =
  15. 15.37.64 × 10 =
  16. 16.48.97 ÷ 1000 =
  17. 17.189.1 × 1000 =
  18. 18.442.5 ÷ 1000 =
  19. 19.14.21 × 10 =
  20. 20.27.35 ÷ 10 =
  21. 21.190.6 ÷ 100 =
  22. 22.46.54 ÷ 1000 =
  23. 23.382.7 × 10 =
  24. 24.242.8 × 10 =
  25. 25.272.1 × 10 =
  26. 26.29.35 × 10 =
  27. 27.16.66 × 10 =
  28. 28.10.58 ÷ 1000 =
  29. 29.7.6 ÷ 1000 =
  30. 30.363.6 × 1000 =
  31. 31.359.6 × 10 =
  32. 32.345.7 ÷ 100 =
  33. 33.403.6 × 10 =
  34. 34.68.9 ÷ 10 =
  35. 35.20.22 × 1000 =
  36. 36.304.2 × 100 =
  37. 37.31.04 × 100 =
  38. 38.5.73 ÷ 100 =
  39. 39.44.94 × 1000 =
  40. 40.216.7 ÷ 10 =

Answer key

  1. 1.554
  2. 1.526
  3. 19130
  4. 1916
  5. 10.91
  6. 8.75
  7. 0.4751
  8. 10280
  9. 2098
  10. 0.02723
  11. 0.4305
  12. 3611
  13. 4.401
  14. 4397
  15. 376.4
  16. 0.04897
  17. 189100
  18. 0.4425
  19. 142.1
  20. 2.735
  21. 1.906
  22. 0.04654
  23. 3827
  24. 2428
  25. 2721
  26. 293.5
  27. 166.6
  28. 0.01058
  29. 0.0076
  30. 363600
  31. 3596
  32. 3.457
  33. 4036
  34. 6.89
  35. 20220
  36. 30420
  37. 3104
  38. 0.0573
  39. 44940
  40. 21.67

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