When you ask "What number is halfway between 42 and 340?" 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=340.
To find the number halfway between 42 and 340, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 42 and 340 into our formula, we get:
(42 + 340)/2 = 191
Thus, the number halfway between 42 and 340 is 191.
To check that our answer is correct, we subtract 42 from 191 and subtract 191 from 340 and compare the two numbers:
191 - 42 = 149
340 - 191 = 149
As you can see, the halfway number is 149 higher than 42 and 149 lower than 340. Therefore, our halfway between answer of 191 above is correct.
Halfway Between
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Halfway Between 42 and 341
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