The rule for multiplying and dividing is very similar to the rule for adding and subtracting. a) We have \({+5}\) and \({-4}\). The signs are different, so the answer will be negative. So, \(+5 ...

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 ...