When you ask "What number is halfway between 64 and 197?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=64 and Y=197.
To find the number halfway between 64 and 197, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 64 and 197 into our formula, we get:
(64 + 197)/2 = 130.5
Thus, the number halfway between 64 and 197 is 130.5.
To check that our answer is correct, we subtract 64 from 130.5 and subtract 130.5 from 197 and compare the two numbers:
130.5 - 64 = 66.5
197 - 130.5 = 66.5
As you can see, the halfway number is 66.5 higher than 64 and 66.5 lower than 197. Therefore, our halfway between answer of 130.5 above is correct.
Halfway Between
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Halfway Between 64 and 198
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