6,7*8,4+6,7 * 1,6 =6,7(8,4+1,6)=6,7*10=67
2)12,37*4,185-12,37*3,185 =12,37(4,185-3,185)=12,37*1=12,37
3)6,1*3,4+6,1*2,6=6,1*(3,4+2,6)=6,1*6=36,6
4)9,1*0,387-9,1*0,287=9,1*(0,387-0,287)=9,1*0,1=9
5)0,5*43,2*2=(0,5*2)43,2=43,2
6)1,25*3,27*8=(1,25*8)*3,27=10*3,27=32,7
7)62,711:10=6,2711
8)451,*0,01=4,51