When you ask "What number is halfway between 26 and 489?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=26 and Y=489.
To find the number halfway between 26 and 489, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 26 and 489 into our formula, we get:
(26 + 489)/2 = 257.5
Thus, the number halfway between 26 and 489 is 257.5.
To check that our answer is correct, we subtract 26 from 257.5 and subtract 257.5 from 489 and compare the two numbers:
257.5 - 26 = 231.5
489 - 257.5 = 231.5
As you can see, the halfway number is 231.5 higher than 26 and 231.5 lower than 489. Therefore, our halfway between answer of 257.5 above is correct.
Halfway Between
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Halfway Between 26 and 490
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