When you ask "What number is halfway between 7 and 99?" 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=99.
To find the number halfway between 7 and 99, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 99 into our formula, we get:
(7 + 99)/2 = 53
Thus, the number halfway between 7 and 99 is 53.
To check that our answer is correct, we subtract 7 from 53 and subtract 53 from 99 and compare the two numbers:
53 - 7 = 46
99 - 53 = 46
As you can see, the halfway number is 46 higher than 7 and 46 lower than 99. Therefore, our halfway between answer of 53 above is correct.
Halfway Between
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Halfway Between 7 and 100
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