When you ask "What number is halfway between 99 and 743?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=99 and Y=743.
To find the number halfway between 99 and 743, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 99 and 743 into our formula, we get:
(99 + 743)/2 = 421
Thus, the number halfway between 99 and 743 is 421.
To check that our answer is correct, we subtract 99 from 421 and subtract 421 from 743 and compare the two numbers:
421 - 99 = 322
743 - 421 = 322
As you can see, the halfway number is 322 higher than 99 and 322 lower than 743. Therefore, our halfway between answer of 421 above is correct.
Halfway Between
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Halfway Between 99 and 744
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