2.3x3,4+2,3x5,6x2,3 =2,3x3,4+2,3x5,6x2,3x1 =2,3x(3,4+5,6+1) =2,3x10 =23
= 2.3 + 2.6 + 2.3 + 2.15 + 2.3
= 2.(3+6+3+15+3)
= 2.30
= 60
=2,3 x 3,4 + 2,3 x 5,6 + 23 x 1
= 2,3 x (3,4 + 5,6 + 1)
=2,3 x 10
=23
2.3x3.4+2.3+5.6x2.3= 2.3x3.4+2.3x1+5.6x2.3=2.3x(3.4+1+5.6)=2.3x10=23