Question

50+50+80+20+60+55+44+1+40

k mk k mk lai

Answer 1

50+50+80+20+60+55+44+1+40=400 nha

Answer 2

\(50+50+80+20+60+55+44+1+40\)

\(=\left(50+50\right)+\left(80+20\right)+\left(60+40\right)+\left(55+44+1\right)\)

\(=100+100+100+100\)

\(=100.4\)

\(=400\)

nho gui tin nhan do

Answer 3

ok 

ko ghi lại đề 

= ( 50 + 50 ) + ( 80 + 20 ) + ( 60 + 40 ) + ( 55 + 44 + 1 ) 

=      100              100              100             100

=    100 x 4 

= 400