When you ask "What number is halfway between 79 and 697?" 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=697.
To find the number halfway between 79 and 697, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 79 and 697 into our formula, we get:
(79 + 697)/2 = 388
Thus, the number halfway between 79 and 697 is 388.
To check that our answer is correct, we subtract 79 from 388 and subtract 388 from 697 and compare the two numbers:
388 - 79 = 309
697 - 388 = 309
As you can see, the halfway number is 309 higher than 79 and 309 lower than 697. Therefore, our halfway between answer of 388 above is correct.
Halfway Between
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Halfway Between 79 and 698
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