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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 309 · 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. 1.388.2 × 100 =
  2. 2.305.7 × 1000 =
  3. 3.35.53 × 100 =
  4. 4.5.86 × 1000 =
  5. 5.102.6 ÷ 100 =
  6. 6.314.9 × 1000 =
  7. 7.362.2 × 10 =
  8. 8.33.83 ÷ 10 =
  9. 9.27.85 ÷ 100 =
  10. 10.23.37 ÷ 1000 =
  11. 11.266.4 ÷ 10 =
  12. 12.53.7 × 100 =
  13. 13.33.28 ÷ 100 =
  14. 14.14.15 ÷ 10 =
  15. 15.348.5 ÷ 10 =
  16. 16.18.81 ÷ 10 =
  17. 17.238.3 × 100 =
  18. 18.335.1 ÷ 1000 =
  19. 19.60.5 ÷ 100 =
  20. 20.488.9 × 10 =
  21. 21.45.54 ÷ 100 =
  22. 22.401.6 ÷ 10 =
  23. 23.49.65 ÷ 10 =
  24. 24.25.52 × 100 =
  25. 25.139.2 × 10 =
  26. 26.40.31 × 10 =
  27. 27.32.59 ÷ 10 =
  28. 28.17.12 ÷ 1000 =
  29. 29.168.1 ÷ 10 =
  30. 30.360.4 × 1000 =
  31. 31.71.1 ÷ 10 =
  32. 32.132.3 × 100 =
  33. 33.36.94 ÷ 1000 =
  34. 34.18.13 × 10 =
  35. 35.17.55 × 100 =
  36. 36.98.7 × 10 =
  37. 37.9.33 ÷ 100 =
  38. 38.476.1 × 100 =
  39. 39.255.4 ÷ 10 =
  40. 40.126.2 ÷ 1000 =

Answer key

  1. 38820
  2. 305700
  3. 3553
  4. 5860
  5. 1.026
  6. 314900
  7. 3622
  8. 3.383
  9. 0.2785
  10. 0.02337
  11. 26.64
  12. 5370
  13. 0.3328
  14. 1.415
  15. 34.85
  16. 1.881
  17. 23830
  18. 0.3351
  19. 0.605
  20. 4889
  21. 0.4554
  22. 40.16
  23. 4.965
  24. 2552
  25. 1392
  26. 403.1
  27. 3.259
  28. 0.01712
  29. 16.81
  30. 360400
  31. 7.11
  32. 13230
  33. 0.03694
  34. 181.3
  35. 1755
  36. 987
  37. 0.0933
  38. 47610
  39. 25.54
  40. 0.1262

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