Halfway Between 66 and 625

When you ask "What number is halfway between 66 and 625?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=66 and Y=625.

Halfway Between Line

To find the number halfway between 66 and 625, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 66 and 625 into our formula, we get:

(66 + 625)/2 = 345.5

Thus, the number halfway between 66 and 625 is 345.5.

To check that our answer is correct, we subtract 66 from 345.5 and subtract 345.5 from 625 and compare the two numbers:

345.5 - 66 = 279.5
625 - 345.5 = 279.5

As you can see, the halfway number is 279.5 higher than 66 and 279.5 lower than 625. Therefore, our halfway between answer of 345.5 above is correct.

Halfway Between
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