When you ask "What number is halfway between 21 and 462?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=21 and Y=462.
To find the number halfway between 21 and 462, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 21 and 462 into our formula, we get:
(21 + 462)/2 = 241.5
Thus, the number halfway between 21 and 462 is 241.5.
To check that our answer is correct, we subtract 21 from 241.5 and subtract 241.5 from 462 and compare the two numbers:
241.5 - 21 = 220.5
462 - 241.5 = 220.5
As you can see, the halfway number is 220.5 higher than 21 and 220.5 lower than 462. Therefore, our halfway between answer of 241.5 above is correct.
Halfway Between
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Halfway Between 21 and 463
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