Halfway Between 21 and 485

When you ask "What number is halfway between 21 and 485?" 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=485.

Halfway Between Line

To find the number halfway between 21 and 485, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 21 and 485 into our formula, we get:

(21 + 485)/2 = 253

Thus, the number halfway between 21 and 485 is 253.

To check that our answer is correct, we subtract 21 from 253 and subtract 253 from 485 and compare the two numbers:

253 - 21 = 232
485 - 253 = 232

As you can see, the halfway number is 232 higher than 21 and 232 lower than 485. Therefore, our halfway between answer of 253 above is correct.

Halfway Between
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Halfway Between 21 and 486
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