• ScarlettFarra2000
1. If a and b are any two real numbers, explain how you calculate the difference a – b. Be sure to include the following in your explanation: a. A description of the relationship between addition and subtraction. b. How you can use a number line to help with the calculation. c. How you can determine the sign of the result.
  • Stacey Warren - Expert
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  • katieb
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  • mathmale
Questions for you: How are addition and subtraction related to one another? Values a and b could be graphed on a number line. Just draw a horizontal line and mark the origin with zero. Supposing that b is greater than a, please locate values a and b on the number line. How far apart are a and b? What does this distance represent?
  • ScarlettFarra2000

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