Question

tính nhanh 25.5+25-25.4

Answer 1

 25.5+25-25.4= 50 

hok tốt 

k mk nha mn 

Answer 2

=25(5+1-4)

=25x2

=50

Answer 3

25.5+25-25.4

=25.6-25.4

=50

Answer 4

25 . 5 + 25 - 25 .4

=25. 5+25 . 1 -25 . 4

=25 .(5+1 -4 )

=25. 2

=50

k cho mk nha !!!!!

Answer 5

   25.5 + 25 - 25.4

= 25.5 + 25.1 - 25.4

= 25. (5+1-4)

= 25.2

=50

Answer 6

25(5+1-4)

25*2=50

Đ/S:50