When you ask "What number is halfway between 7 and 166?" 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=166.
To find the number halfway between 7 and 166, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 166 into our formula, we get:
(7 + 166)/2 = 86.5
Thus, the number halfway between 7 and 166 is 86.5.
To check that our answer is correct, we subtract 7 from 86.5 and subtract 86.5 from 166 and compare the two numbers:
86.5 - 7 = 79.5
166 - 86.5 = 79.5
As you can see, the halfway number is 79.5 higher than 7 and 79.5 lower than 166. Therefore, our halfway between answer of 86.5 above is correct.
Halfway Between
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Halfway Between 7 and 167
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