Question

(-11,2).5,4 +100 -5,4.(1,2)

 

Answer 1

sao 1,2 lại đóng mở ngoặc vậy?

Answer 2

=5,4(-11,2+1,2)+100

=5,4*(-10)+100

=100-54

=46

Answer 3

\(\left(-11,2\right)\times5,4+100-5,4\times\left(-1,2\right)\\ =-60,48+100-\left(-6,48\right)\\ =-60,48+100+6,48\\ =39,53+6,48\\ =46\)