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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 833 · 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. 1.28.05 ÷ 10 =
  2. 2.30.03 × 1000 =
  3. 3.145.4 ÷ 10 =
  4. 4.40.5 ÷ 10 =
  5. 5.15.22 × 10 =
  6. 6.42.66 × 10 =
  7. 7.375.4 ÷ 1000 =
  8. 8.455.8 × 1000 =
  9. 9.189.6 ÷ 1000 =
  10. 10.51.1 ÷ 10 =
  11. 11.27.59 × 100 =
  12. 12.336.1 × 100 =
  13. 13.171.7 × 100 =
  14. 14.47.64 ÷ 10 =
  15. 15.38.81 × 1000 =
  16. 16.90.7 ÷ 10 =
  17. 17.41.96 ÷ 1000 =
  18. 18.200.3 ÷ 10 =
  19. 19.217.3 ÷ 100 =
  20. 20.6.9 ÷ 100 =
  21. 21.43.37 ÷ 10 =
  22. 22.6.61 × 100 =
  23. 23.42.8 ÷ 10 =
  24. 24.34.98 ÷ 10 =
  25. 25.30.3 ÷ 1000 =
  26. 26.156.5 × 10 =
  27. 27.101.4 × 10 =
  28. 28.21.88 × 10 =
  29. 29.37.1 × 10 =
  30. 30.457.9 ÷ 10 =
  31. 31.83.6 × 1000 =
  32. 32.315.1 ÷ 1000 =
  33. 33.36.52 ÷ 100 =
  34. 34.29.68 ÷ 10 =
  35. 35.418.1 × 10 =
  36. 36.35.87 × 100 =
  37. 37.322.8 ÷ 100 =
  38. 38.316.7 ÷ 10 =
  39. 39.8.39 × 10 =
  40. 40.233.7 × 100 =

Answer key

  1. 2.805
  2. 30030
  3. 14.54
  4. 4.05
  5. 152.2
  6. 426.6
  7. 0.3754
  8. 455800
  9. 0.1896
  10. 5.11
  11. 2759
  12. 33610
  13. 17170
  14. 4.764
  15. 38810
  16. 9.07
  17. 0.04196
  18. 20.03
  19. 2.173
  20. 0.069
  21. 4.337
  22. 661
  23. 4.28
  24. 3.498
  25. 0.0303
  26. 1565
  27. 1014
  28. 218.8
  29. 371
  30. 45.79
  31. 83600
  32. 0.3151
  33. 0.3652
  34. 2.968
  35. 4181
  36. 3587
  37. 3.228
  38. 31.67
  39. 83.9
  40. 23370

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