<span>1008*604-(105984:12+54321)= 545679</span>
<span>1) (105984:12+54321)=8832+54321=63153</span>
<span>2) 1008*604=608832</span>
<span>3) 608832-63153=545679</span>
<span></span>
С (5;5) аналогично