When you ask "What number is halfway between 49 and 630?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=49 and Y=630.
To find the number halfway between 49 and 630, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 49 and 630 into our formula, we get:
(49 + 630)/2 = 339.5
Thus, the number halfway between 49 and 630 is 339.5.
To check that our answer is correct, we subtract 49 from 339.5 and subtract 339.5 from 630 and compare the two numbers:
339.5 - 49 = 290.5
630 - 339.5 = 290.5
As you can see, the halfway number is 290.5 higher than 49 and 290.5 lower than 630. Therefore, our halfway between answer of 339.5 above is correct.
Halfway Between
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Halfway Between 49 and 631
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