When you ask "What number is halfway between 7 and 98?" 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=98.
To find the number halfway between 7 and 98, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 98 into our formula, we get:
(7 + 98)/2 = 52.5
Thus, the number halfway between 7 and 98 is 52.5.
To check that our answer is correct, we subtract 7 from 52.5 and subtract 52.5 from 98 and compare the two numbers:
52.5 - 7 = 45.5
98 - 52.5 = 45.5
As you can see, the halfway number is 45.5 higher than 7 and 45.5 lower than 98. Therefore, our halfway between answer of 52.5 above is correct.
Halfway Between
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Halfway Between 7 and 99
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