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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 16 · 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. 1.34.95 ÷ 100 =
  2. 2.464.6 ÷ 10 =
  3. 3.329.7 ÷ 1000 =
  4. 4.397.5 × 10 =
  5. 5.295.1 × 100 =
  6. 6.32.28 × 100 =
  7. 7.278.4 ÷ 10 =
  8. 8.358.5 ÷ 100 =
  9. 9.5.3 × 100 =
  10. 10.43.74 ÷ 1000 =
  11. 11.195.1 × 10 =
  12. 12.320.9 ÷ 10 =
  13. 13.294.8 × 1000 =
  14. 14.255.3 × 1000 =
  15. 15.34.88 × 100 =
  16. 16.31.61 ÷ 1000 =
  17. 17.104.5 × 10 =
  18. 18.466.1 × 10 =
  19. 19.2.64 × 10 =
  20. 20.265.2 ÷ 100 =
  21. 21.37.7 × 1000 =
  22. 22.4.53 ÷ 1000 =
  23. 23.19.58 ÷ 1000 =
  24. 24.23.92 ÷ 100 =
  25. 25.264.8 ÷ 10 =
  26. 26.19.87 × 10 =
  27. 27.216.1 ÷ 10 =
  28. 28.469.8 × 10 =
  29. 29.2.54 ÷ 100 =
  30. 30.445.9 × 100 =
  31. 31.72.9 ÷ 1000 =
  32. 32.30.21 ÷ 1000 =
  33. 33.11.8 ÷ 1000 =
  34. 34.193.5 ÷ 1000 =
  35. 35.58.1 ÷ 1000 =
  36. 36.3.27 × 1000 =
  37. 37.47.48 × 10 =
  38. 38.5.49 × 100 =
  39. 39.393.6 × 10 =
  40. 40.11.4 ÷ 100 =

Answer key

  1. 0.3495
  2. 46.46
  3. 0.3297
  4. 3975
  5. 29510
  6. 3228
  7. 27.84
  8. 3.585
  9. 530
  10. 0.04374
  11. 1951
  12. 32.09
  13. 294800
  14. 255300
  15. 3488
  16. 0.03161
  17. 1045
  18. 4661
  19. 26.4
  20. 2.652
  21. 37700
  22. 0.00453
  23. 0.01958
  24. 0.2392
  25. 26.48
  26. 198.7
  27. 21.61
  28. 4698
  29. 0.0254
  30. 44590
  31. 0.0729
  32. 0.03021
  33. 0.0118
  34. 0.1935
  35. 0.0581
  36. 3270
  37. 474.8
  38. 549
  39. 3936
  40. 0.114

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