Why do we round five up when it’s exactly in the middle?

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Why do we round five up when it’s exactly in the middle?

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9 Answers

Anonymous 0 Comments

There’s nothing in math to actually say that exactly 5 should be rounded one way or another. It’s exactly halfway between 0 and 10.

But one big thing is that you would round 5.00000000000000000000000000000000000000000001 up, and it would feel very wrong to round that up but not exactly 5. If you rounded 5 down, you would only round *exactly* 5 and not 5 + some very small amount, which can be more weird.

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