When you ask "What number is halfway between 3 and 342?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=3 and Y=342.
To find the number halfway between 3 and 342, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 3 and 342 into our formula, we get:
(3 + 342)/2 = 172.5
Thus, the number halfway between 3 and 342 is 172.5.
To check that our answer is correct, we subtract 3 from 172.5 and subtract 172.5 from 342 and compare the two numbers:
172.5 - 3 = 169.5
342 - 172.5 = 169.5
As you can see, the halfway number is 169.5 higher than 3 and 169.5 lower than 342. Therefore, our halfway between answer of 172.5 above is correct.
Halfway Between
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Halfway Between 3 and 343
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