When you ask "What number is halfway between 8 and 157?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=8 and Y=157.
To find the number halfway between 8 and 157, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 8 and 157 into our formula, we get:
(8 + 157)/2 = 82.5
Thus, the number halfway between 8 and 157 is 82.5.
To check that our answer is correct, we subtract 8 from 82.5 and subtract 82.5 from 157 and compare the two numbers:
82.5 - 8 = 74.5
157 - 82.5 = 74.5
As you can see, the halfway number is 74.5 higher than 8 and 74.5 lower than 157. Therefore, our halfway between answer of 82.5 above is correct.
Halfway Between
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Halfway Between 8 and 158
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