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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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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!
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.