When you ask "What number is halfway between 7 and 273?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=7 and Y=273.
To find the number halfway between 7 and 273, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 273 into our formula, we get:
(7 + 273)/2 = 140
Thus, the number halfway between 7 and 273 is 140.
To check that our answer is correct, we subtract 7 from 140 and subtract 140 from 273 and compare the two numbers:
140 - 7 = 133
273 - 140 = 133
As you can see, the halfway number is 133 higher than 7 and 133 lower than 273. Therefore, our halfway between answer of 140 above is correct.
Halfway Between
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Halfway Between 7 and 274
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