When you ask "What number is halfway between 7 and 145?" 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=145.
To find the number halfway between 7 and 145, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 145 into our formula, we get:
(7 + 145)/2 = 76
Thus, the number halfway between 7 and 145 is 76.
To check that our answer is correct, we subtract 7 from 76 and subtract 76 from 145 and compare the two numbers:
76 - 7 = 69
145 - 76 = 69
As you can see, the halfway number is 69 higher than 7 and 69 lower than 145. Therefore, our halfway between answer of 76 above is correct.
Halfway Between
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Halfway Between 7 and 146
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