When you ask "What number is halfway between 3 and 637?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=3 and Y=637.
To find the number halfway between 3 and 637, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 3 and 637 into our formula, we get:
(3 + 637)/2 = 320
Thus, the number halfway between 3 and 637 is 320.
To check that our answer is correct, we subtract 3 from 320 and subtract 320 from 637 and compare the two numbers:
320 - 3 = 317
637 - 320 = 317
As you can see, the halfway number is 317 higher than 3 and 317 lower than 637. Therefore, our halfway between answer of 320 above is correct.
Halfway Between
Find halfway between two other numbers here!
Halfway Between 3 and 638
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