When you ask "What number is halfway between 7 and 316?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=7 and Y=316.
To find the number halfway between 7 and 316, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 316 into our formula, we get:
(7 + 316)/2 = 161.5
Thus, the number halfway between 7 and 316 is 161.5.
To check that our answer is correct, we subtract 7 from 161.5 and subtract 161.5 from 316 and compare the two numbers:
161.5 - 7 = 154.5
316 - 161.5 = 154.5
As you can see, the halfway number is 154.5 higher than 7 and 154.5 lower than 316. Therefore, our halfway between answer of 161.5 above is correct.
Halfway Between
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Halfway Between 7 and 317
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