Halfway Between 13 and 990

When you ask "What number is halfway between 13 and 990?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=13 and Y=990.

Halfway Between Line

To find the number halfway between 13 and 990, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 13 and 990 into our formula, we get:

(13 + 990)/2 = 501.5

Thus, the number halfway between 13 and 990 is 501.5.

To check that our answer is correct, we subtract 13 from 501.5 and subtract 501.5 from 990 and compare the two numbers:

501.5 - 13 = 488.5
990 - 501.5 = 488.5

As you can see, the halfway number is 488.5 higher than 13 and 488.5 lower than 990. Therefore, our halfway between answer of 501.5 above is correct.

Halfway Between
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Halfway Between 13 and 991
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