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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 952 · 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. 1.42.43 ÷ 1000 =
  2. 2.1.89 ÷ 1000 =
  3. 3.98.9 × 1000 =
  4. 4.6.26 × 10 =
  5. 5.28.72 × 100 =
  6. 6.28.41 ÷ 1000 =
  7. 7.236.6 ÷ 10 =
  8. 8.10.11 × 1000 =
  9. 9.394.7 × 1000 =
  10. 10.131.4 × 100 =
  11. 11.55.1 ÷ 10 =
  12. 12.43.51 × 100 =
  13. 13.9.48 ÷ 100 =
  14. 14.35.6 × 1000 =
  15. 15.89.1 ÷ 100 =
  16. 16.353.6 × 10 =
  17. 17.15.55 × 100 =
  18. 18.85.9 × 10 =
  19. 19.9.16 × 1000 =
  20. 20.149.9 ÷ 100 =
  21. 21.23.1 × 10 =
  22. 22.13.1 × 10 =
  23. 23.71.5 ÷ 1000 =
  24. 24.96.1 × 100 =
  25. 25.14.83 ÷ 100 =
  26. 26.37.62 × 1000 =
  27. 27.18.67 × 100 =
  28. 28.309.1 × 10 =
  29. 29.100.6 ÷ 10 =
  30. 30.7.6 ÷ 100 =
  31. 31.27.81 ÷ 10 =
  32. 32.349.6 × 1000 =
  33. 33.44.6 × 10 =
  34. 34.372.9 × 100 =
  35. 35.55.4 ÷ 100 =
  36. 36.110.6 × 10 =
  37. 37.146.2 × 10 =
  38. 38.383.2 ÷ 1000 =
  39. 39.2.18 ÷ 1000 =
  40. 40.112.8 × 100 =

Answer key

  1. 0.04243
  2. 0.00189
  3. 98900
  4. 62.6
  5. 2872
  6. 0.02841
  7. 23.66
  8. 10110
  9. 394700
  10. 13140
  11. 5.51
  12. 4351
  13. 0.0948
  14. 35600
  15. 0.891
  16. 3536
  17. 1555
  18. 859
  19. 9160
  20. 1.499
  21. 231
  22. 131
  23. 0.0715
  24. 9610
  25. 0.1483
  26. 37620
  27. 1867
  28. 3091
  29. 10.06
  30. 0.076
  31. 2.781
  32. 349600
  33. 446
  34. 37290
  35. 0.554
  36. 1106
  37. 1462
  38. 0.3832
  39. 0.00218
  40. 11280

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