Halfway Between 100 and 800

When you ask "What number is halfway between 100 and 800?" 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=800.

Halfway Between Line

To find the number halfway between 100 and 800, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 100 and 800 into our formula, we get:

(100 + 800)/2 = 450

Thus, the number halfway between 100 and 800 is 450.

To check that our answer is correct, we subtract 100 from 450 and subtract 450 from 800 and compare the two numbers:

450 - 100 = 350
800 - 450 = 350

As you can see, the halfway number is 350 higher than 100 and 350 lower than 800. Therefore, our halfway between answer of 450 above is correct.

Halfway Between
Find halfway between two other numbers here!

Halfway Between 100 and 801
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