The August air was crisp Tuesday as members of D.C’s National Guard, a key component of President Donald Trump’s federal takeover of the District, scooped, spread and smoothed mounds of mulch around ...
Same signs give a positive: \(3 + (+2) = 3 + 2 = 5\) Same signs give a positive: \(3 - (-2) = 3 + 2 = 5\) Different signs give a negative: \(3 + (-2) = 3 - 2 = 1 ...
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