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Unit 1. Day 3.

Learn how to apply addition and subtraction concepts to rational numbers (fractions) including integers, explore "addtracting" integers, practice subtracting large integers, and understand the additive inverse. Examples and exercises provided.

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Unit 1. Day 3.

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  1. Unit 1. Day 3.

  2. Please get out paper for today’s lesson Name Date Period -------------------------------------------------------- Topic: “Addtracting” Integers 7.NS.A.1 Apply and extend previous understandings of addition and subtraction to add and subtract rational numbers (fractions)

  3. What is an integer? Real Rational -3.24, 2/3, 6.71, -5/2, … Integers -1, -2, -3, -4, … Irrational π, e, 2 Whole 0 Natural 1, 2, 3, 4, …

  4. Subtracting (addtracting) Integers • Not-Not Situations • Add/Subtract Large Integers • “The difference”

  5. Example A: Find - - - - - - - - - - -

  6. Understand subtraction of rational numbers as adding the additive inverse, p - q = p + (-q). “addtraction” subtraction addition

  7. Example B*: Find Example C*: Find

  8. Example B: Find - - - - - - - - - - -

  9. Example C: Find - - - - - - - - - - -

  10. Example D: Find - - - - - - - - - - -

  11. Example E*: Find

  12. Please get out the assignment from last class. Please get out your notes from yesterday. Please complete the quiz, and write your answers in the answer box

  13. Subtracting (addtracting) Integers • Not-Not Situations • Add/Subtract Large Integers • “The difference”

  14. I will not, not punch you He is not, not my boyfriend We will not, not go to the movies Dr. Woodfork will not, not say the pledge Michael is not, not my best friend

  15. - - - - - - - - - - -

  16. - - - - - - - - - - -

  17. - - - - - - - - - - -

  18. Example F: Find - - - - - - - - - - -

  19. Example G*: Find Example H*: Find

  20. Example G: Find - - - - - - - - - - -

  21. Example H: Find - - - - - - - - - - -

  22. Please get out the assignment from last class. Please get out your notes from yesterday. Please complete the quiz, and write your answers in the answer box

  23. Subtracting (addtracting) Integers • Not-Not Situations • Add/Subtract Large Integers • “The difference”

  24. Example I: Find

  25. Example J: Find

  26. Example K: Find

  27. Example L: Find

  28. Example M: Find

  29. Example N: Find

  30. Rules

  31. Please get out the assignment from last class. Please get out your notes from yesterday. Please complete the quiz, and write your answers in the answer box

  32. Subtracting (addtracting) Integers • Not-Not Situations • Add/Subtract Large Integers • “The difference”

  33. Batman has $39 Spiderman has $52 What is the difference between Spiderman’s and Batman’s money? Example -:

  34. Spiderman has $63 Batman has -$41 What is the difference between Spiderman’s and Batman’s money? Example -:

  35. Android phones saw a 24% increase in sales. Apple iPhones saw a 13% increase in sales What is the difference in sales growth between Android and Apple? Example -:

  36. Android phones saw a 24% increase in sales. Apple iPhones saw a 8% decrease in sales What is the difference in sales growth between Android and Apple? Example -:

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