3,5.23+7,12+10,5.9+14.6,5=3,5.23+3,5.24+3,5.27+3,5.26
=3,5.(23+24+27+26)=3,5.100=350
3,5 x23 + 7x12+ 10,5x 9+14x 6,5
= 3,5x 23+ 3,5x24+ 3,5x 27+ 3,5x 26
= 3,5x ( 23+24+27+26)
= 3,5 x 100= 350.
duyệt đi
3,5 x23 + 7x12+ 10,5x 9+14x 6,5
= 3,5x 23+ 3,5x24+ 3,5x 27+ 3,5x 26
= 3,5x ( 23+24+27+26)
= 3,5 x 100= 350.