When you ask "What number is halfway between 7 and 189?" 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=189.
To find the number halfway between 7 and 189, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 189 into our formula, we get:
(7 + 189)/2 = 98
Thus, the number halfway between 7 and 189 is 98.
To check that our answer is correct, we subtract 7 from 98 and subtract 98 from 189 and compare the two numbers:
98 - 7 = 91
189 - 98 = 91
As you can see, the halfway number is 91 higher than 7 and 91 lower than 189. Therefore, our halfway between answer of 98 above is correct.
Halfway Between
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Halfway Between 7 and 190
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