Subtracting a negative number is like adding a positive number. Example. What is \(4 - (-2)\)? To subtract -2 from 4, start at number 4 on a number line, and count to the right.

When adding and subtracting numbers it's important to be consistent with positive and negative values. Remember that two plus signs or two minus signs make a positive. One plus and one minus make ...

You can add and subtract a set of numbers by specifying the range, such as =SUM(A1:A10). ... Instead, to subtract, you sum with negative numbers. There are a few common ways to do this.