Halfway Between 21 and 331




When you ask "What number is halfway between 21 and 331?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=21 and Y=331.



To find the number halfway between 21 and 331, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 21 and 331 into our formula, we get:

(21 + 331)/2 = 176

Thus, the number halfway between 21 and 331 is 176.


To check that our answer is correct, we subtract 21 from 176 and subtract 176 from 331 and compare the two numbers:

176 - 21 = 155
331 - 176 = 155

As you can see, the halfway number is 155 higher than 21 and 155 lower than 331. Therefore, our halfway between answer of 176 above is correct.

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Halfway Between 21 and 332
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