Our maths lecturer, was leaving to US for his further studies

we gave farewell 

in the party this was my marvel

he adds friends

subtracts enemies

divides ignorance

multiplies virtues

differentiates good bad

integrates all in to one

All this will improve the percentage

REPLY

Multiplies virtues'', interestingly, 

with compounded interest

proportionately

i am his affectionately

you have given me more marks , 

simply your generosity, it marks