Halfway Between 20 and 420

When you ask "What number is halfway between 20 and 420?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=20 and Y=420.

Halfway Between Line

To find the number halfway between 20 and 420, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 20 and 420 into our formula, we get:

(20 + 420)/2 = 220

Thus, the number halfway between 20 and 420 is 220.

To check that our answer is correct, we subtract 20 from 220 and subtract 220 from 420 and compare the two numbers:

220 - 20 = 200
420 - 220 = 200

As you can see, the halfway number is 200 higher than 20 and 200 lower than 420. Therefore, our halfway between answer of 220 above is correct.

Halfway Between
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Halfway Between 20 and 421
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