When you ask "What number is halfway between 31 and 185?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=31 and Y=185.
To find the number halfway between 31 and 185, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 31 and 185 into our formula, we get:
(31 + 185)/2 = 108
Thus, the number halfway between 31 and 185 is 108.
To check that our answer is correct, we subtract 31 from 108 and subtract 108 from 185 and compare the two numbers:
108 - 31 = 77
185 - 108 = 77
As you can see, the halfway number is 77 higher than 31 and 77 lower than 185. Therefore, our halfway between answer of 108 above is correct.
Halfway Between
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Halfway Between 31 and 186
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