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Adding Real Numbers CHANGE ALL ______________ SIGNS TO A ___________________ RAP!

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Adding Real Numbers CHANGE ALL ______________ SIGNS TO A ___________________ RAP! - PowerPoint PPT Presentation


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Adding Real Numbers CHANGE ALL ______________ SIGNS TO A ___________________ RAP! 1. 4. 7. 2. 5. 8. 3. 6. 9. Evaluate the expressions. 10. 12. 11. 13. THINK!. double. -2 -1 0 1 2 3. single sign.

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Presentation Transcript
slide1

Adding Real Numbers

  • CHANGE ALL
  • ______________ SIGNS
  • TO A ___________________
  • RAP!
  • 1. 4. 7.
  • 2. 5. 8.
  • 3. 6. 9.
  • Evaluate the expressions.
  • 10. 12.
  • 11. 13.

THINK!

double

-2 -1 0 1 2 3

single sign

Double signs ADD . . . signs opposite SUBTRACT!

slide2

Story Problems

14. A football team gains 2 yards and then loses 7 yards in two plays. You express a loss of 7 as -7. Use addition to find the result of the two plays.

15. The temperature falls 15 degrees and then rises 18 degrees. Find the change in temperature.

Adding Matrices:

16.

17.

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