Halfway Between 100 and 130

When you ask "What number is halfway between 100 and 130?" 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=130.

Halfway Between Line

To find the number halfway between 100 and 130, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 100 and 130 into our formula, we get:

(100 + 130)/2 = 115

Thus, the number halfway between 100 and 130 is 115.

To check that our answer is correct, we subtract 100 from 115 and subtract 115 from 130 and compare the two numbers:

115 - 100 = 15
130 - 115 = 15

As you can see, the halfway number is 15 higher than 100 and 15 lower than 130. Therefore, our halfway between answer of 115 above is correct.

Halfway Between
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Halfway Between 100 and 131
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