Halfway Between 100 and 118

When you ask "What number is halfway between 100 and 118?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=100 and Y=118.

Halfway Between Line

To find the number halfway between 100 and 118, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 100 and 118 into our formula, we get:

(100 + 118)/2 = 109

Thus, the number halfway between 100 and 118 is 109.

To check that our answer is correct, we subtract 100 from 109 and subtract 109 from 118 and compare the two numbers:

109 - 100 = 9
118 - 109 = 9

As you can see, the halfway number is 9 higher than 100 and 9 lower than 118. Therefore, our halfway between answer of 109 above is correct.

Halfway Between
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Halfway Between 100 and 119
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