Halfway Between 55 and 660

When you ask "What number is halfway between 55 and 660?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=55 and Y=660.

Halfway Between Line

To find the number halfway between 55 and 660, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 55 and 660 into our formula, we get:

(55 + 660)/2 = 357.5

Thus, the number halfway between 55 and 660 is 357.5.

To check that our answer is correct, we subtract 55 from 357.5 and subtract 357.5 from 660 and compare the two numbers:

357.5 - 55 = 302.5
660 - 357.5 = 302.5

As you can see, the halfway number is 302.5 higher than 55 and 302.5 lower than 660. Therefore, our halfway between answer of 357.5 above is correct.

Halfway Between
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