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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 776 · 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. 1.5.21 ÷ 1000 =
  2. 2.36.94 × 10 =
  3. 3.22.34 × 10 =
  4. 4.131.7 × 100 =
  5. 5.248.9 × 10 =
  6. 6.389.8 × 1000 =
  7. 7.45.82 × 100 =
  8. 8.344.2 × 10 =
  9. 9.196.8 × 100 =
  10. 10.25.02 × 100 =
  11. 11.268.3 ÷ 1000 =
  12. 12.357.4 ÷ 10 =
  13. 13.32.01 ÷ 1000 =
  14. 14.23.36 × 100 =
  15. 15.178.1 × 100 =
  16. 16.26.76 × 100 =
  17. 17.53.1 × 10 =
  18. 18.74.3 ÷ 1000 =
  19. 19.60.1 × 1000 =
  20. 20.46.58 ÷ 100 =
  21. 21.432.3 × 1000 =
  22. 22.108.4 ÷ 10 =
  23. 23.489.8 ÷ 10 =
  24. 24.140.5 × 10 =
  25. 25.3.96 ÷ 100 =
  26. 26.137.7 ÷ 10 =
  27. 27.5.84 ÷ 10 =
  28. 28.6.95 ÷ 1000 =
  29. 29.253.7 × 100 =
  30. 30.96.8 ÷ 10 =
  31. 31.49.63 × 10 =
  32. 32.168.6 ÷ 100 =
  33. 33.2.85 ÷ 10 =
  34. 34.21.83 × 100 =
  35. 35.456.2 × 100 =
  36. 36.295.3 × 10 =
  37. 37.11.07 ÷ 1000 =
  38. 38.40.56 ÷ 100 =
  39. 39.1.09 × 100 =
  40. 40.476.5 ÷ 1000 =

Answer key

  1. 0.00521
  2. 369.4
  3. 223.4
  4. 13170
  5. 2489
  6. 389800
  7. 4582
  8. 3442
  9. 19680
  10. 2502
  11. 0.2683
  12. 35.74
  13. 0.03201
  14. 2336
  15. 17810
  16. 2676
  17. 531
  18. 0.0743
  19. 60100
  20. 0.4658
  21. 432300
  22. 10.84
  23. 48.98
  24. 1405
  25. 0.0396
  26. 13.77
  27. 0.584
  28. 0.00695
  29. 25370
  30. 9.68
  31. 496.3
  32. 1.686
  33. 0.285
  34. 2183
  35. 45620
  36. 2953
  37. 0.01107
  38. 0.4056
  39. 109
  40. 0.4765

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