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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 949 · 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. 1.48.26 ÷ 10 =
  2. 2.23.07 ÷ 1000 =
  3. 3.260.1 ÷ 1000 =
  4. 4.40.63 × 100 =
  5. 5.17.82 × 10 =
  6. 6.8.71 × 100 =
  7. 7.42.31 × 1000 =
  8. 8.130.1 ÷ 100 =
  9. 9.10.51 × 10 =
  10. 10.475.5 × 1000 =
  11. 11.21.56 ÷ 10 =
  12. 12.5.91 ÷ 100 =
  13. 13.1.6 ÷ 1000 =
  14. 14.274.1 ÷ 100 =
  15. 15.13.1 × 10 =
  16. 16.5.87 ÷ 10 =
  17. 17.6.21 × 100 =
  18. 18.6.85 × 10 =
  19. 19.250.8 × 100 =
  20. 20.300.5 ÷ 1000 =
  21. 21.9.57 × 10 =
  22. 22.29.88 × 10 =
  23. 23.227.5 ÷ 1000 =
  24. 24.43.3 × 1000 =
  25. 25.369.8 ÷ 100 =
  26. 26.28.7 ÷ 10 =
  27. 27.443.7 ÷ 100 =
  28. 28.394.5 ÷ 1000 =
  29. 29.29.82 × 100 =
  30. 30.3.95 ÷ 1000 =
  31. 31.23.53 ÷ 10 =
  32. 32.42.57 × 100 =
  33. 33.47.78 × 100 =
  34. 34.199.1 ÷ 1000 =
  35. 35.63.8 ÷ 100 =
  36. 36.434.4 × 10 =
  37. 37.210.6 ÷ 1000 =
  38. 38.397.1 × 10 =
  39. 39.6.43 × 1000 =
  40. 40.6.37 ÷ 100 =

Answer key

  1. 4.826
  2. 0.02307
  3. 0.2601
  4. 4063
  5. 178.2
  6. 871
  7. 42310
  8. 1.301
  9. 105.1
  10. 475500
  11. 2.156
  12. 0.0591
  13. 0.0016
  14. 2.741
  15. 131
  16. 0.587
  17. 621
  18. 68.5
  19. 25080
  20. 0.3005
  21. 95.7
  22. 298.8
  23. 0.2275
  24. 43300
  25. 3.698
  26. 2.87
  27. 4.437
  28. 0.3945
  29. 2982
  30. 0.00395
  31. 2.353
  32. 4257
  33. 4778
  34. 0.1991
  35. 0.638
  36. 4344
  37. 0.2106
  38. 3971
  39. 6430
  40. 0.0637

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