Expanded Form - Ten Thousands

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Grade Level

• Middle School

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Subject

• Mathematics

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Length of Time

• 45 Minutes To 1 Hour

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Description

• This lesson is about writing numbers to ten thousands in expanded form.

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Goals

• Students will learn:
  
  * To write numbers in expanded form to ten thousands
  
  

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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 a copy.
  
  Then, you will write draw a chart on the board to show the students what they will do on their worksheet.
  
  For the number 31,457, you can draw a chart to show:
  
  Ten Thousands Thousands Hundreds Tens Ones
  
  Then, you will place the numbers in the right place value.
  
  3 1 4 5 7
  
  The value of the 3 is 30,000. There are 3 ten thousands, which equals 30,000
  The value of the 1 is 1,000. There are 1 thousand, which equals 1,000.
  The value of the 4 is 400. There are 4 hundreds, which equals 400.
  The value of the 5 is 50. There are 5 tens, which equals 50.
  The value of the 7 is 7. There are 7 ones, which equals 7.
  
  Expanded form of 31,457 = 30,000 + 1,000 + 400 + 50 + 7
  
  After that, you will pass out the worksheet so they can work on them independently.
  
  
  
  Worksheet - Writing Numbers in Expanded Form
  
  Directions: Write the following numbers in expanded form.
  
  1. 43,236 =
  
  2. 32,345 =
  
  3. 66,495 =
  
  4. 85,398 =
  
  5. 76,275 =
  
  6. 67,190 =
  
  7. 22,496 =
  
  8. 14,325 =
  
  9. 78,833 =
  
  10. 67,439 =
  
  11. 52,530 =
  
  12. 34,254 =
  
  13. 43,947 =
  
  14. 13,393 =
  
  15. 27,543 =
  
  16. 94,212 =
  
  17. 28,384 =
  
  18. 35,642 =
  
  19. 91,423 =
  
  20. 18,421 =
  
  
  
  
  Answer Sheet
  
  1. 43,236 = 40,000 + 3,000 + 200 + 30 + 6
  
  2. 32,345 = 30,000 + 2,000 + 300 + 40 + 5
  
  3. 66,495 = 66,000 + 6,000 + 400 + 90 + 5
  
  4. 85,398 = 80,000 + 5,000 + 300 + 90 + 8
  
  5. 76,275 = 70,000 + 6,000 + 200 + 70 + 5
  
  6. 67,190 = 60,000 + 7,000 + 100 + 90 + 0
  
  7. 22,496 = 20,000 + 2,000 + 400 + 90 + 6
  
  8. 14,325 = 10,000 + 4,000 + 300 + 20 + 5
  
  9. 78,833 = 70,000 + 8,000 + 800 + 30 + 3
  
  10. 67,439 = 60,000 + 7,000 + 400 + 30 + 9
  
  11. 52,530 = 50,000 + 2,000 + 500 + 30 + 0
  
  12. 34,254 = 30, 000 + 4,000 + 200 + 50 + 4
  
  13. 43,947 = 40,000 + 3,000 + 900 + 40 + 7
  
  14. 13,393 = 1,000 + 3,000 + 300 + 90 + 3
  
  15. 27,543 = 20,000 + 7,000 + 500 + 40 + 3
  
  16. 94,212 = 90,000 + 4,000 + 200 + 10 + 2
  
  17. 28,384 = 20,000 + 8,000 + 300 + 80 + 4
  
  18. 35,642 = 30,000 + 5,000 + 600 + 40 + 2
  
  19. 91,423 = 90,000 + 1,000 + 400 + 20 + 3
  
  20. 18,421 = 10,000 + 8,000 + 400 + 20 + 1
  
  
  
  
  

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Grading

• Each one is worth five points for a total of 100 points.
  
  100 to 90 = A
  
  89 to 80 = B
  
  79 to 70 = C
  
  69 to 60 = D
  
  Below 60 = F
  
  

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