Meles ... I discovered just today that my mobile phone (Nokia, 11 yrs old and very retro !) has a calculator on it !
The dyslexia runs in the female side of our family ... my #2 daughter (and her daughter), me, my mother, grandmother and gr. grandmother all were terrible spellers ... so I'd say for the previous generations, that was what caused it ! I'm not left handed, but ambidextrous !! (As were my mother and grandmother !) Odd ....