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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 320 · 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. 1.26.85 ÷ 100 =
  2. 2.19.51 ÷ 1000 =
  3. 3.198.4 ÷ 100 =
  4. 4.313.3 ÷ 1000 =
  5. 5.47.92 ÷ 100 =
  6. 6.250.9 × 1000 =
  7. 7.47.4 × 100 =
  8. 8.17.92 × 100 =
  9. 9.333.2 ÷ 1000 =
  10. 10.264.1 × 100 =
  11. 11.466.2 × 10 =
  12. 12.13.04 × 1000 =
  13. 13.25.5 × 1000 =
  14. 14.46.94 × 10 =
  15. 15.146.3 × 100 =
  16. 16.29.44 ÷ 1000 =
  17. 17.117.5 × 10 =
  18. 18.218.4 ÷ 10 =
  19. 19.123.7 ÷ 10 =
  20. 20.36.29 × 10 =
  21. 21.124.9 ÷ 100 =
  22. 22.403.8 ÷ 10 =
  23. 23.11.83 × 1000 =
  24. 24.4.54 × 100 =
  25. 25.8.3 × 100 =
  26. 26.49.88 ÷ 100 =
  27. 27.44.24 ÷ 10 =
  28. 28.31.73 × 1000 =
  29. 29.5.53 × 10 =
  30. 30.424.3 ÷ 100 =
  31. 31.21.38 ÷ 100 =
  32. 32.9.41 × 10 =
  33. 33.48.39 × 10 =
  34. 34.39.21 ÷ 10 =
  35. 35.245.2 ÷ 1000 =
  36. 36.418.2 ÷ 100 =
  37. 37.23.6 × 100 =
  38. 38.46.43 × 10 =
  39. 39.274.7 ÷ 10 =
  40. 40.233.1 × 100 =

Answer key

  1. 0.2685
  2. 0.01951
  3. 1.984
  4. 0.3133
  5. 0.4792
  6. 250900
  7. 4740
  8. 1792
  9. 0.3332
  10. 26410
  11. 4662
  12. 13040
  13. 25500
  14. 469.4
  15. 14630
  16. 0.02944
  17. 1175
  18. 21.84
  19. 12.37
  20. 362.9
  21. 1.249
  22. 40.38
  23. 11830
  24. 454
  25. 830
  26. 0.4988
  27. 4.424
  28. 31730
  29. 55.3
  30. 4.243
  31. 0.2138
  32. 94.1
  33. 483.9
  34. 3.921
  35. 0.2452
  36. 4.182
  37. 2360
  38. 464.3
  39. 27.47
  40. 23310

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