When you ask "What number is halfway between 69 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=69 and Y=242.
To find the number halfway between 69 and 242, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 69 and 242 into our formula, we get:
(69 + 242)/2 = 155.5
Thus, the number halfway between 69 and 242 is 155.5.
To check that our answer is correct, we subtract 69 from 155.5 and subtract 155.5 from 242 and compare the two numbers:
155.5 - 69 = 86.5
242 - 155.5 = 86.5
As you can see, the halfway number is 86.5 higher than 69 and 86.5 lower than 242. Therefore, our halfway between answer of 155.5 above is correct.
Halfway Between
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Halfway Between 69 and 243
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