Question

Tính nhanh :

23 x 45 +  46 x 23 + 23 x 8 + 23

Answer 1

   23 x 45 + 46 x 23 + 23 x 8 + 23

= 23 x 45 + 46 x 23 + 23 x 8 + 23 x 1

= 23 x (45 + 46 + 8 + 1)

= 23 x 100

= 2300

Answer 2

23x(45+46+8+1)=23x100=2300

Answer 3

23x45+46x23+23x8+23=23x(45+46+8+1)=23x100=2300 k va kb voiminh nhe!

Answer 4

2300 nha

Answer 5

= 23x(45+46+8+1)

=23x100

=2300