Adding Real Numbers. Section 2-3-1. Think money. . 5 + 3 = 8 Up 5 , then up 3 more If you have $5 in your pocket and are given $3 more, how much do you have? -5 + (-3) = -8 Down 5 then down 3 more If you owe $5 and then borrow $3 more, how much do you have?.
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