The abacus was much faster for addition, somewhat faster for multiplication, but Feynman was faster at division.
ðɪ ˈæbækəs wʌz mˈʌtʃ fˈæstɚ fɔːɹ ɐdˈɪʃən, sˈʌmwʌt fˈæstɚ fɔːɹ mˌʌltɪplɪkˈeɪʃən, bˌʌt fˈeɪnmən wʌz fˈæstɚɹ æt dᵻvˈɪʒən.