When you ask "What number is halfway between 80 and 142?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=80 and Y=142.
To find the number halfway between 80 and 142, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 80 and 142 into our formula, we get:
(80 + 142)/2 = 111
Thus, the number halfway between 80 and 142 is 111.
To check that our answer is correct, we subtract 80 from 111 and subtract 111 from 142 and compare the two numbers:
111 - 80 = 31
142 - 111 = 31
As you can see, the halfway number is 31 higher than 80 and 31 lower than 142. Therefore, our halfway between answer of 111 above is correct.
Halfway Between
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Halfway Between 80 and 143
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