LonelyWendigo
LonelyWendigo@lemmy.world
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0 posts • 8 comments
I understand that people are scared of “new” math, but for a 1989 birthday just take the last too digits of the current year, add ten, then add one if you’ve already had a birthday this year, e.g. 23+10+1=34. Almost the same math I used to count change when I worked retail.