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

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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PowerPoint Slideshow about ' Adding Real Numbers CHANGE ALL ______________ SIGNS TO A ___________________ RAP! ' - wing-summers

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Presentation Transcript

• 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!

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.