When you ask "What number is halfway between 7 and 77?" 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=77.
To find the number halfway between 7 and 77, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 77 into our formula, we get:
(7 + 77)/2 = 42
Thus, the number halfway between 7 and 77 is 42.
To check that our answer is correct, we subtract 7 from 42 and subtract 42 from 77 and compare the two numbers:
42 - 7 = 35
77 - 42 = 35
As you can see, the halfway number is 35 higher than 7 and 35 lower than 77. Therefore, our halfway between answer of 42 above is correct.
Halfway Between
Find halfway between two other numbers here!
Halfway Between 7 and 78
Here is our next Halfway Between calculation.
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