Math Doubt

One day I was practicing this math equation.

By the way I suck at math.

Anyways, I was trying to not use my calculator.

Until I came across an easy equation that questioned my doubt.

17+6

I counted with my fingers until I hit 23.

It's 23 right?

RIGHT?

I was pretty sure, but my doubt wasn't.

So instead I put in the calculator,

"17+5" by accident and I got the answer 22.

So I put 22 as my answer on my assignment.

Ye I got it wrong tehe