Halfway Between 100 and 900

When you ask "What number is halfway between 100 and 900?" 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=900.

Halfway Between Line

To find the number halfway between 100 and 900, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 100 and 900 into our formula, we get:

(100 + 900)/2 = 500

Thus, the number halfway between 100 and 900 is 500.

To check that our answer is correct, we subtract 100 from 500 and subtract 500 from 900 and compare the two numbers:

500 - 100 = 400
900 - 500 = 400

As you can see, the halfway number is 400 higher than 100 and 400 lower than 900. Therefore, our halfway between answer of 500 above is correct.

Halfway Between
Find halfway between two other numbers here!

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