Decimals and Percents - Part One

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Grade Level

• Middle School

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Subject

• Mathematics

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Length of Time

• 1 Hour

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Description

• In this lesson, students will change decimals into percents.

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Goals

• Students will learn:
  
  * About decimals and percents.
  
  * How to change decimals into percents
  
  *
  

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Materials Needed

• * The worksheet I have included in this lesson
  
  * Pencils and erasers
  

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Procedure

• First, you will copy the worksheet so that each student will have one.
  
  Then, you will explain to the students how to change decimals into percents.
  
  To change decimals into percents, you move the decimal point two places to the right and add the percent sign. For example:
  2.27 = 227% .75 = 75%
  
  After that, you will pass out the worksheet so that students can work on them independently.
  
  
  
  Worksheet - Changing Decimals into Percents
  
  Directions: Change the follow decimal numbers into percents.
  
  1. 4.05
  
  2. 66.75
  
  3. .002
  
  4. 2.2
  
  5. 6.67
  
  6. .75
  
  7. .40
  
  8. .809
  
  9. .99
  
  10. .65
  
  11. .76
  
  12. .891
  
  13. .003
  
  14. 5.67
  
  15. 2.55
  
  16. .044
  
  17. .652
  
  18. 5.55
  
  19. 6.78
  
  20. 9.99
  
  
  
  
  Answer Sheet
  
  1. 4.05 = 405%
  
  2. 66.75 = 6675%
  
  3. .002 = 2%
  
  4. 2.2 = 220%
  
  5. 6.67 = 667%
  
  6. .75 = 75%
  
  7. .40 = 40%
  
  8. .809 = 80.9%
  
  9. .99 = 99%
  
  10. .65 = 65%
  
  11. .76 = 76%
  
  12. .891 = 89.1%
  
  13. .003 = .3%
  
  14. 5.67 = 567%
  
  15. 2.55 = 255%
  
  16. .044 = 4.4%
  
  17. .652 = 65.2%
  
  18. 5.55 = 555%
  
  19. 6.78 = 678%
  
  20. 9.99 = 999%
  
  

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Grading

• Each problem is worth five points.
  
  100 to 90 = A
  
  89 to 80 = B
  
  79 to 70 = C
  
  69 to 60 = D
  
  Below 60 = F
  
  

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