What is the sum of −12+15? You may use the number line to help you figure out the answer. A number line ranging from negative 15 to positive 15, in increments of 1. Drag and drop the sum into the box to match the expression. −12+15
Example : If you owe 12 dollars, but give them 12 dollars but you also have a extra $3 left, the amount you have left will be the sum. I hope putting it this way helps.
