Halfway Between 30 and 100

When you ask "What number is halfway between 30 and 100?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=30 and Y=100.

Halfway Between Line

To find the number halfway between 30 and 100, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 30 and 100 into our formula, we get:

(30 + 100)/2 = 65

Thus, the number halfway between 30 and 100 is 65.

To check that our answer is correct, we subtract 30 from 65 and subtract 65 from 100 and compare the two numbers:

65 - 30 = 35
100 - 65 = 35

As you can see, the halfway number is 35 higher than 30 and 35 lower than 100. Therefore, our halfway between answer of 65 above is correct.

Halfway Between
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Halfway Between 30 and 101
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