Question

0.9 * 50 + 9 * 3.2 + 90 * 0.28

Answer 1

0.9*50 + 9*3.2 +90*0.28

=0.9*10*5 + 9*3.2 + 9*10*0.28

=9*5 + 9*3.2 + 9*2.8

=9*( 5+3.2+2.8)

=9*11

=99

k cho mình nha, mình k lại

Answer 2

= 1321,2 nha bn 

Answer 3

0.9*50 + 9*3.2 + 90*0.28

= 0.9*10*5 + 9*3.2 + 9*10*0.28

=9*5 + 9*3.2 + 9*28

=9*(5+3.2+28)

=9*36.2

=325.8

K CHO MÌNH NHA BẠN