9.8*65.2*1.25-12.5*0.652*18
=9.8*65.2*1.25-1.25*65.2*1.8
= 65.2*1.25*(9.8-1.8)
=65.2*1.25*8
=65.2*(1.25*8)
=65.2*10
=652
9.8*65.2*1.25-12.5*0.652*18
=9.8*65.2*1.25-1.25*65.2*1.8
=65.2*1.25*(9.8-1.8)
=65.2*1.25*8
=65.2*10
=652
9.8*65.2*1.25-12.5*0.652*18
=65.2×1.25×(9.8-1.8)
=65.2×1.25×8
=65.2×10
=652