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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 709 · 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. 1.308.9 ÷ 10 =
  2. 2.494.3 × 10 =
  3. 3.37.65 ÷ 100 =
  4. 4.11.71 × 1000 =
  5. 5.26.5 × 1000 =
  6. 6.279.2 × 100 =
  7. 7.208.7 ÷ 10 =
  8. 8.344.7 × 1000 =
  9. 9.489.8 × 10 =
  10. 10.425.7 ÷ 10 =
  11. 11.368.9 ÷ 10 =
  12. 12.2.25 × 10 =
  13. 13.6.93 ÷ 1000 =
  14. 14.430.1 ÷ 1000 =
  15. 15.13.01 × 10 =
  16. 16.326.5 × 1000 =
  17. 17.10.95 × 100 =
  18. 18.46.72 × 100 =
  19. 19.45.54 × 1000 =
  20. 20.22.49 × 1000 =
  21. 21.146.8 × 10 =
  22. 22.80.2 × 100 =
  23. 23.255.2 × 1000 =
  24. 24.25.14 × 10 =
  25. 25.9.23 × 10 =
  26. 26.434.6 ÷ 10 =
  27. 27.0.54 ÷ 10 =
  28. 28.432.6 × 1000 =
  29. 29.117.4 × 10 =
  30. 30.31.94 ÷ 10 =
  31. 31.9.38 × 100 =
  32. 32.235.5 ÷ 1000 =
  33. 33.488.1 × 1000 =
  34. 34.375.7 × 100 =
  35. 35.48.69 × 1000 =
  36. 36.4.85 ÷ 10 =
  37. 37.39.97 ÷ 100 =
  38. 38.2.33 ÷ 10 =
  39. 39.228.4 ÷ 1000 =
  40. 40.311.2 ÷ 10 =

Answer key

  1. 30.89
  2. 4943
  3. 0.3765
  4. 11710
  5. 26500
  6. 27920
  7. 20.87
  8. 344700
  9. 4898
  10. 42.57
  11. 36.89
  12. 22.5
  13. 0.00693
  14. 0.4301
  15. 130.1
  16. 326500
  17. 1095
  18. 4672
  19. 45540
  20. 22490
  21. 1468
  22. 8020
  23. 255200
  24. 251.4
  25. 92.3
  26. 43.46
  27. 0.054
  28. 432600
  29. 1174
  30. 3.194
  31. 938
  32. 0.2355
  33. 488100
  34. 37570
  35. 48690
  36. 0.485
  37. 0.3997
  38. 0.233
  39. 0.2284
  40. 31.12

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