
When you ask "What number is halfway between 79 and 797?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=79 and Y=797.

To find the number halfway between 79 and 797, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 79 and 797 into our formula, we get:
(79 + 797)/2 = 438
Thus, the number halfway between 79 and 797 is 438.
To check that our answer is correct, we subtract 79 from 438 and subtract 438 from 797 and compare the two numbers:
438 - 79 = 359
797 - 438 = 359
As you can see, the halfway number is 359 higher than 79 and 359 lower than 797. Therefore, our halfway between answer of 438 above is correct.
Halfway Between
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Halfway Between 79 and 798
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