Halfway Between 9 and 80

When you ask "What number is halfway between 9 and 80?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=9 and Y=80.

Halfway Between Line

To find the number halfway between 9 and 80, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 9 and 80 into our formula, we get:

(9 + 80)/2 = 44.5

Thus, the number halfway between 9 and 80 is 44.5.

To check that our answer is correct, we subtract 9 from 44.5 and subtract 44.5 from 80 and compare the two numbers:

44.5 - 9 = 35.5
80 - 44.5 = 35.5

As you can see, the halfway number is 35.5 higher than 9 and 35.5 lower than 80. Therefore, our halfway between answer of 44.5 above is correct.

Halfway Between
Find halfway between two other numbers here!

Halfway Between 9 and 81
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