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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 53 · 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. 1.237.1 × 1000 =
  2. 2.253.1 × 100 =
  3. 3.6.25 × 100 =
  4. 4.30.03 × 1000 =
  5. 5.18.75 ÷ 1000 =
  6. 6.9.73 ÷ 100 =
  7. 7.330.5 ÷ 10 =
  8. 8.44.1 × 10 =
  9. 9.19.95 ÷ 100 =
  10. 10.315.3 ÷ 100 =
  11. 11.162.6 ÷ 100 =
  12. 12.33.89 ÷ 1000 =
  13. 13.332.2 × 10 =
  14. 14.241.4 × 10 =
  15. 15.49.71 ÷ 10 =
  16. 16.231.1 × 100 =
  17. 17.39.29 ÷ 100 =
  18. 18.146.5 ÷ 10 =
  19. 19.107.7 × 100 =
  20. 20.114.4 × 1000 =
  21. 21.4.34 × 1000 =
  22. 22.10.7 × 100 =
  23. 23.227.3 ÷ 1000 =
  24. 24.322.7 ÷ 1000 =
  25. 25.11.68 × 10 =
  26. 26.7.9 × 100 =
  27. 27.43.29 ÷ 100 =
  28. 28.39.46 ÷ 100 =
  29. 29.25.65 ÷ 100 =
  30. 30.28.68 × 100 =
  31. 31.42.38 × 1000 =
  32. 32.403.2 × 10 =
  33. 33.1.2 ÷ 100 =
  34. 34.108.7 × 10 =
  35. 35.34.65 × 1000 =
  36. 36.309.1 × 100 =
  37. 37.9.35 × 100 =
  38. 38.46.67 × 10 =
  39. 39.33.29 × 100 =
  40. 40.196.5 × 10 =

Answer key

  1. 237100
  2. 25310
  3. 625
  4. 30030
  5. 0.01875
  6. 0.0973
  7. 33.05
  8. 441
  9. 0.1995
  10. 3.153
  11. 1.626
  12. 0.03389
  13. 3322
  14. 2414
  15. 4.971
  16. 23110
  17. 0.3929
  18. 14.65
  19. 10770
  20. 114400
  21. 4340
  22. 1070
  23. 0.2273
  24. 0.3227
  25. 116.8
  26. 790
  27. 0.4329
  28. 0.3946
  29. 0.2565
  30. 2868
  31. 42380
  32. 4032
  33. 0.012
  34. 1087
  35. 34650
  36. 30910
  37. 935
  38. 466.7
  39. 3329
  40. 1965

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