u/Illustrious_Mode_525

My (28f) husband (34m) and I have a six year age gap and I asked him what his thoughts are on how Case did his math. This sparked a convo about how my husband literally imagines an addition/subtraction equation with the plus/minus sign and the line drawn under it. Don’t get me wrong, I’m familiar with and understand it, but when doing math in my head I take the same steps Case does. Doing the entire equation and carrying the number seems wild to me.

Makes sense to me since Case and I are only 3 months apart so we likely learned math similarly. I’m curious, what are your thoughts? How do you do math in your head?