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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 267 · 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. 1.4.72 × 10 =
  2. 2.44.37 ÷ 1000 =
  3. 3.23.65 × 10 =
  4. 4.42.17 ÷ 1000 =
  5. 5.417.1 ÷ 100 =
  6. 6.14.94 ÷ 1000 =
  7. 7.49.46 ÷ 1000 =
  8. 8.32.38 × 1000 =
  9. 9.291.7 × 10 =
  10. 10.70.7 ÷ 10 =
  11. 11.100.3 × 100 =
  12. 12.218.1 ÷ 10 =
  13. 13.17.01 ÷ 1000 =
  14. 14.298.3 × 10 =
  15. 15.2.01 × 1000 =
  16. 16.255.3 × 10 =
  17. 17.0.61 ÷ 10 =
  18. 18.42.47 ÷ 100 =
  19. 19.338.9 × 1000 =
  20. 20.48.02 × 100 =
  21. 21.387.6 ÷ 1000 =
  22. 22.47.43 × 1000 =
  23. 23.237.6 × 100 =
  24. 24.43.91 × 100 =
  25. 25.20.91 × 10 =
  26. 26.112.7 ÷ 100 =
  27. 27.127.5 ÷ 10 =
  28. 28.34.7 × 1000 =
  29. 29.30.64 ÷ 100 =
  30. 30.33.71 ÷ 10 =
  31. 31.1.15 × 10 =
  32. 32.263.3 × 100 =
  33. 33.177.3 ÷ 10 =
  34. 34.32.52 × 10 =
  35. 35.46.74 ÷ 1000 =
  36. 36.303.7 ÷ 1000 =
  37. 37.41.9 ÷ 10 =
  38. 38.45.04 × 100 =
  39. 39.14.9 × 10 =
  40. 40.453.4 × 10 =

Answer key

  1. 47.2
  2. 0.04437
  3. 236.5
  4. 0.04217
  5. 4.171
  6. 0.01494
  7. 0.04946
  8. 32380
  9. 2917
  10. 7.07
  11. 10030
  12. 21.81
  13. 0.01701
  14. 2983
  15. 2010
  16. 2553
  17. 0.061
  18. 0.4247
  19. 338900
  20. 4802
  21. 0.3876
  22. 47430
  23. 23760
  24. 4391
  25. 209.1
  26. 1.127
  27. 12.75
  28. 34700
  29. 0.3064
  30. 3.371
  31. 11.5
  32. 26330
  33. 17.73
  34. 325.2
  35. 0.04674
  36. 0.3037
  37. 4.19
  38. 4504
  39. 149
  40. 4534

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