When you ask "What number is halfway between 71 and 242?" 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=242.
To find the number halfway between 71 and 242, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 71 and 242 into our formula, we get:
(71 + 242)/2 = 156.5
Thus, the number halfway between 71 and 242 is 156.5.
To check that our answer is correct, we subtract 71 from 156.5 and subtract 156.5 from 242 and compare the two numbers:
156.5 - 71 = 85.5
242 - 156.5 = 85.5
As you can see, the halfway number is 85.5 higher than 71 and 85.5 lower than 242. Therefore, our halfway between answer of 156.5 above is correct.
Halfway Between
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Halfway Between 71 and 243
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