When you ask "What number is halfway between 7 and 888?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=7 and Y=888.
To find the number halfway between 7 and 888, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 888 into our formula, we get:
(7 + 888)/2 = 447.5
Thus, the number halfway between 7 and 888 is 447.5.
To check that our answer is correct, we subtract 7 from 447.5 and subtract 447.5 from 888 and compare the two numbers:
447.5 - 7 = 440.5
888 - 447.5 = 440.5
As you can see, the halfway number is 440.5 higher than 7 and 440.5 lower than 888. Therefore, our halfway between answer of 447.5 above is correct.
Halfway Between
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Halfway Between 7 and 889
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