When I was at school, we were taught when using a calculator you should also do a mental arithmetic “first approximation” (ie. rough guess, ballpark figure) to verify the result. A useful cross-check for not being way out due to…
International tgirl of misfittery
When I was at school, we were taught when using a calculator you should also do a mental arithmetic “first approximation” (ie. rough guess, ballpark figure) to verify the result. A useful cross-check for not being way out due to…