
When you ask "What number is halfway between 45 and 749?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=45 and Y=749.

To find the number halfway between 45 and 749, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 45 and 749 into our formula, we get:
(45 + 749)/2 = 397
Thus, the number halfway between 45 and 749 is 397.
To check that our answer is correct, we subtract 45 from 397 and subtract 397 from 749 and compare the two numbers:
397 - 45 = 352
749 - 397 = 352
As you can see, the halfway number is 352 higher than 45 and 352 lower than 749. Therefore, our halfway between answer of 397 above is correct.
Halfway Between
Find halfway between two other numbers here!
Halfway Between 45 and 750
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