submitted 3 months ago* (last edited 3 months ago) by toni_bmw@lemmy.world to c/calculators@midwest.social

4 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[-] MajorHavoc@programming.dev 3 points 3 months ago

Stick a pen tip into the slot at one of the numbers and scrape it upwards for adding, downwards for substraction.

The display updates with the new sum.

Mine came with more complicated instructions for handling more advanced forms of math, as well, but I immediately forgot those.

this post was submitted on 07 Aug 2024

36 points (97.4% liked)

Calculator Community

233 readers

1 users here now

A community centered around handheld calculators. Show off your collections, ask questions, or trade benchmarks and torture tests.

Icon snagged from here.

founded 1 year ago

MODERATORS