25 * (4 8) how to simplify the calculation

25 * (4 8) how to simplify the calculation


25*(50-2)=25*50-25*2=1250-50=1200
25*(40+8)=25*40+25*8=1000+200=1200



8.75 - (0.75 + 3.4) simple calculation


8.75-(0.75+3.4)
=8.75-0.75-3.4
=8-3.4
=4.6