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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 500 · 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. 1.33.43 × 10 =
  2. 2.8.16 × 1000 =
  3. 3.326.6 ÷ 100 =
  4. 4.486.7 × 1000 =
  5. 5.431.6 ÷ 1000 =
  6. 6.31.94 × 100 =
  7. 7.45.8 × 10 =
  8. 8.38.86 × 1000 =
  9. 9.30.21 × 100 =
  10. 10.9.3 ÷ 100 =
  11. 11.97.1 ÷ 10 =
  12. 12.19.34 × 10 =
  13. 13.290.8 ÷ 1000 =
  14. 14.49.33 ÷ 100 =
  15. 15.142.8 ÷ 1000 =
  16. 16.116.1 × 100 =
  17. 17.392.8 ÷ 1000 =
  18. 18.229.1 ÷ 100 =
  19. 19.313.7 ÷ 1000 =
  20. 20.30.41 ÷ 10 =
  21. 21.455.5 × 1000 =
  22. 22.469.7 ÷ 1000 =
  23. 23.46.01 ÷ 100 =
  24. 24.332.4 ÷ 1000 =
  25. 25.12.58 × 10 =
  26. 26.9.44 × 10 =
  27. 27.70.4 × 10 =
  28. 28.9.16 × 100 =
  29. 29.41.95 × 10 =
  30. 30.47.83 × 1000 =
  31. 31.92.1 × 10 =
  32. 32.18.3 ÷ 100 =
  33. 33.125.1 × 10 =
  34. 34.457.1 × 1000 =
  35. 35.47.52 × 10 =
  36. 36.0.79 × 100 =
  37. 37.2.16 ÷ 10 =
  38. 38.120.4 ÷ 100 =
  39. 39.18.44 ÷ 10 =
  40. 40.1.24 × 1000 =

Answer key

  1. 334.3
  2. 8160
  3. 3.266
  4. 486700
  5. 0.4316
  6. 3194
  7. 458
  8. 38860
  9. 3021
  10. 0.093
  11. 9.71
  12. 193.4
  13. 0.2908
  14. 0.4933
  15. 0.1428
  16. 11610
  17. 0.3928
  18. 2.291
  19. 0.3137
  20. 3.041
  21. 455500
  22. 0.4697
  23. 0.4601
  24. 0.3324
  25. 125.8
  26. 94.4
  27. 704
  28. 916
  29. 419.5
  30. 47830
  31. 921
  32. 0.183
  33. 1251
  34. 457100
  35. 475.2
  36. 79
  37. 0.216
  38. 1.204
  39. 1.844
  40. 1240

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