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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 347 · 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. 1.440.1 × 100 =
  2. 2.26.1 × 10 =
  3. 3.351.3 × 1000 =
  4. 4.259.9 ÷ 100 =
  5. 5.29.67 ÷ 1000 =
  6. 6.49.71 ÷ 10 =
  7. 7.30.2 × 10 =
  8. 8.491.7 ÷ 100 =
  9. 9.43.99 ÷ 1000 =
  10. 10.1.75 ÷ 10 =
  11. 11.447.2 × 1000 =
  12. 12.12.23 ÷ 1000 =
  13. 13.1.49 ÷ 100 =
  14. 14.4.46 ÷ 10 =
  15. 15.280.9 ÷ 1000 =
  16. 16.9.31 ÷ 100 =
  17. 17.42.13 × 10 =
  18. 18.35.45 ÷ 1000 =
  19. 19.24.06 ÷ 100 =
  20. 20.244.2 ÷ 100 =
  21. 21.443.4 ÷ 10 =
  22. 22.447.8 × 1000 =
  23. 23.5.94 ÷ 10 =
  24. 24.9.54 ÷ 1000 =
  25. 25.357.5 ÷ 100 =
  26. 26.316.3 ÷ 1000 =
  27. 27.11.5 × 1000 =
  28. 28.52.3 × 10 =
  29. 29.164.1 × 100 =
  30. 30.41.74 × 1000 =
  31. 31.460.1 ÷ 1000 =
  32. 32.461.9 ÷ 100 =
  33. 33.278.5 × 100 =
  34. 34.47.96 ÷ 1000 =
  35. 35.24.32 ÷ 100 =
  36. 36.443.6 × 1000 =
  37. 37.43.51 × 1000 =
  38. 38.7.68 ÷ 1000 =
  39. 39.35.62 ÷ 10 =
  40. 40.30.26 ÷ 10 =

Answer key

  1. 44010
  2. 261
  3. 351300
  4. 2.599
  5. 0.02967
  6. 4.971
  7. 302
  8. 4.917
  9. 0.04399
  10. 0.175
  11. 447200
  12. 0.01223
  13. 0.0149
  14. 0.446
  15. 0.2809
  16. 0.0931
  17. 421.3
  18. 0.03545
  19. 0.2406
  20. 2.442
  21. 44.34
  22. 447800
  23. 0.594
  24. 0.00954
  25. 3.575
  26. 0.3163
  27. 11500
  28. 523
  29. 16410
  30. 41740
  31. 0.4601
  32. 4.619
  33. 27850
  34. 0.04796
  35. 0.2432
  36. 443600
  37. 43510
  38. 0.00768
  39. 3.562
  40. 3.026

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