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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 924 · 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. 1.16.24 × 1000 =
  2. 2.234.2 ÷ 10 =
  3. 3.268.2 ÷ 10 =
  4. 4.391.9 × 10 =
  5. 5.10.1 ÷ 10 =
  6. 6.121.3 × 10 =
  7. 7.468.5 ÷ 1000 =
  8. 8.49.1 × 1000 =
  9. 9.318.1 ÷ 1000 =
  10. 10.3.81 × 10 =
  11. 11.14.47 ÷ 100 =
  12. 12.139.1 ÷ 1000 =
  13. 13.7.24 × 10 =
  14. 14.31.21 ÷ 1000 =
  15. 15.424.3 × 100 =
  16. 16.410.5 × 1000 =
  17. 17.264.8 × 10 =
  18. 18.397.9 × 10 =
  19. 19.16.15 × 1000 =
  20. 20.41.33 × 10 =
  21. 21.172.5 ÷ 10 =
  22. 22.6.19 ÷ 1000 =
  23. 23.17.6 × 100 =
  24. 24.3.86 × 10 =
  25. 25.48.3 × 1000 =
  26. 26.175.8 ÷ 10 =
  27. 27.120.1 ÷ 100 =
  28. 28.29.13 ÷ 1000 =
  29. 29.42.06 × 100 =
  30. 30.431.2 ÷ 100 =
  31. 31.45.28 × 1000 =
  32. 32.37.95 × 1000 =
  33. 33.245.2 ÷ 100 =
  34. 34.426.7 × 100 =
  35. 35.155.7 ÷ 100 =
  36. 36.10.53 ÷ 1000 =
  37. 37.33.91 × 100 =
  38. 38.43.91 × 10 =
  39. 39.46.67 × 100 =
  40. 40.16.44 × 10 =

Answer key

  1. 16240
  2. 23.42
  3. 26.82
  4. 3919
  5. 1.01
  6. 1213
  7. 0.4685
  8. 49100
  9. 0.3181
  10. 38.1
  11. 0.1447
  12. 0.1391
  13. 72.4
  14. 0.03121
  15. 42430
  16. 410500
  17. 2648
  18. 3979
  19. 16150
  20. 413.3
  21. 17.25
  22. 0.00619
  23. 1760
  24. 38.6
  25. 48300
  26. 17.58
  27. 1.201
  28. 0.02913
  29. 4206
  30. 4.312
  31. 45280
  32. 37950
  33. 2.452
  34. 42670
  35. 1.557
  36. 0.01053
  37. 3391
  38. 439.1
  39. 4667
  40. 164.4

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