When you ask "What number is halfway between 73 and 317?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=73 and Y=317.
To find the number halfway between 73 and 317, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 73 and 317 into our formula, we get:
(73 + 317)/2 = 195
Thus, the number halfway between 73 and 317 is 195.
To check that our answer is correct, we subtract 73 from 195 and subtract 195 from 317 and compare the two numbers:
195 - 73 = 122
317 - 195 = 122
As you can see, the halfway number is 122 higher than 73 and 122 lower than 317. Therefore, our halfway between answer of 195 above is correct.
Halfway Between
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Halfway Between 73 and 318
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