When you ask "What number is halfway between 49 and 878?" 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=878.
To find the number halfway between 49 and 878, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 49 and 878 into our formula, we get:
(49 + 878)/2 = 463.5
Thus, the number halfway between 49 and 878 is 463.5.
To check that our answer is correct, we subtract 49 from 463.5 and subtract 463.5 from 878 and compare the two numbers:
463.5 - 49 = 414.5
878 - 463.5 = 414.5
As you can see, the halfway number is 414.5 higher than 49 and 414.5 lower than 878. Therefore, our halfway between answer of 463.5 above is correct.
Halfway Between
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Halfway Between 49 and 879
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