A pearlcalculation is calculations you do with pearls. If you think about using pearls to calculate something, it's going to look a lot like using an abacus. That's why this calculation is calculation with abacus.
Kyoko(Tokyo accent, female)
Kenichi(Tokyo accent, male)
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own. Watch out for the rendaku.
I don’t feel like studying calculations on an abacus today.