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 ...
3rd level Add and subtract positive and negative numbers Video When adding and subtracting numbers it's important to be consistent with positive and negative values. Remember that two plus signs or ...