When you ask "What number is halfway between 71 and 228?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=71 and Y=228.
To find the number halfway between 71 and 228, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 71 and 228 into our formula, we get:
(71 + 228)/2 = 149.5
Thus, the number halfway between 71 and 228 is 149.5.
To check that our answer is correct, we subtract 71 from 149.5 and subtract 149.5 from 228 and compare the two numbers:
149.5 - 71 = 78.5
228 - 149.5 = 78.5
As you can see, the halfway number is 78.5 higher than 71 and 78.5 lower than 228. Therefore, our halfway between answer of 149.5 above is correct.
Halfway Between
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Halfway Between 71 and 229
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