When you ask "What number is halfway between 73 and 488?" 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=488.
To find the number halfway between 73 and 488, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 73 and 488 into our formula, we get:
(73 + 488)/2 = 280.5
Thus, the number halfway between 73 and 488 is 280.5.
To check that our answer is correct, we subtract 73 from 280.5 and subtract 280.5 from 488 and compare the two numbers:
280.5 - 73 = 207.5
488 - 280.5 = 207.5
As you can see, the halfway number is 207.5 higher than 73 and 207.5 lower than 488. Therefore, our halfway between answer of 280.5 above is correct.
Halfway Between
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Halfway Between 73 and 489
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