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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 289 · 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. 1.42.63 ÷ 10 =
  2. 2.12.05 ÷ 1000 =
  3. 3.19.56 × 1000 =
  4. 4.41.75 × 100 =
  5. 5.246.6 × 10 =
  6. 6.345.9 × 10 =
  7. 7.304.1 ÷ 100 =
  8. 8.456.1 × 100 =
  9. 9.3.86 ÷ 10 =
  10. 10.185.7 ÷ 1000 =
  11. 11.47.55 × 10 =
  12. 12.93.5 × 100 =
  13. 13.462.3 × 10 =
  14. 14.28.83 × 10 =
  15. 15.333.7 × 10 =
  16. 16.37.56 × 10 =
  17. 17.13.06 ÷ 1000 =
  18. 18.129.3 ÷ 10 =
  19. 19.0.35 ÷ 10 =
  20. 20.47.1 ÷ 1000 =
  21. 21.29.68 × 10 =
  22. 22.430.2 × 1000 =
  23. 23.111.7 ÷ 1000 =
  24. 24.127.1 × 10 =
  25. 25.13.38 × 10 =
  26. 26.331.3 ÷ 10 =
  27. 27.470.7 ÷ 10 =
  28. 28.85.8 ÷ 1000 =
  29. 29.18.72 × 1000 =
  30. 30.475.5 × 1000 =
  31. 31.51.2 × 10 =
  32. 32.111.5 ÷ 1000 =
  33. 33.285.8 × 1000 =
  34. 34.224.3 × 1000 =
  35. 35.26.09 × 100 =
  36. 36.286.4 ÷ 1000 =
  37. 37.6.69 × 1000 =
  38. 38.1.3 ÷ 10 =
  39. 39.479.1 ÷ 10 =
  40. 40.9.99 × 1000 =

Answer key

  1. 4.263
  2. 0.01205
  3. 19560
  4. 4175
  5. 2466
  6. 3459
  7. 3.041
  8. 45610
  9. 0.386
  10. 0.1857
  11. 475.5
  12. 9350
  13. 4623
  14. 288.3
  15. 3337
  16. 375.6
  17. 0.01306
  18. 12.93
  19. 0.035
  20. 0.0471
  21. 296.8
  22. 430200
  23. 0.1117
  24. 1271
  25. 133.8
  26. 33.13
  27. 47.07
  28. 0.0858
  29. 18720
  30. 475500
  31. 512
  32. 0.1115
  33. 285800
  34. 224300
  35. 2609
  36. 0.2864
  37. 6690
  38. 0.13
  39. 47.91
  40. 9990

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