When you ask "What number is halfway between 31 and 229?" 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=229.
To find the number halfway between 31 and 229, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 31 and 229 into our formula, we get:
(31 + 229)/2 = 130
Thus, the number halfway between 31 and 229 is 130.
To check that our answer is correct, we subtract 31 from 130 and subtract 130 from 229 and compare the two numbers:
130 - 31 = 99
229 - 130 = 99
As you can see, the halfway number is 99 higher than 31 and 99 lower than 229. Therefore, our halfway between answer of 130 above is correct.
Halfway Between
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Halfway Between 31 and 230
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