When you ask "What number is halfway between 77 and 196?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=77 and Y=196.
To find the number halfway between 77 and 196, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 77 and 196 into our formula, we get:
(77 + 196)/2 = 136.5
Thus, the number halfway between 77 and 196 is 136.5.
To check that our answer is correct, we subtract 77 from 136.5 and subtract 136.5 from 196 and compare the two numbers:
136.5 - 77 = 59.5
196 - 136.5 = 59.5
As you can see, the halfway number is 59.5 higher than 77 and 59.5 lower than 196. Therefore, our halfway between answer of 136.5 above is correct.
Halfway Between
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Halfway Between 77 and 197
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