
When you ask "What number is halfway between 40 and 330?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=40 and Y=330.

To find the number halfway between 40 and 330, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 40 and 330 into our formula, we get:
(40 + 330)/2 = 185
Thus, the number halfway between 40 and 330 is 185.
To check that our answer is correct, we subtract 40 from 185 and subtract 185 from 330 and compare the two numbers:
185 - 40 = 145
330 - 185 = 145
As you can see, the halfway number is 145 higher than 40 and 145 lower than 330. Therefore, our halfway between answer of 185 above is correct.
Halfway Between
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Halfway Between 40 and 331
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