When you ask "What number is halfway between 42 and 238?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=42 and Y=238.
To find the number halfway between 42 and 238, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 42 and 238 into our formula, we get:
(42 + 238)/2 = 140
Thus, the number halfway between 42 and 238 is 140.
To check that our answer is correct, we subtract 42 from 140 and subtract 140 from 238 and compare the two numbers:
140 - 42 = 98
238 - 140 = 98
As you can see, the halfway number is 98 higher than 42 and 98 lower than 238. Therefore, our halfway between answer of 140 above is correct.
Halfway Between
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Halfway Between 42 and 239
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