What is half of 23?
Half of 23 is 11 1/2.
Half of a Number and Number Lines
Half of a number x is equal to the number, y, that is the same distance from x on the number line that it is from 0 on the number line.
In other words, it is the midpoint of a number line segment with endpoints 0 and x. We can use this fact to find half of a number using number lines.