\(50+60+40+50+50+45\)
\(=\left(50+50\right)+\left(60+40\right)+\left(45+55\right)\)
\(=100+100+100\)
\(=100.3\)
\(=300\)
the lun
50+60+40+50+45
=(50+50)+(60+40)+45
=100+100+45
=200+45
=245
50+60+40+50+55+45
=(50+50)+(60+40)+(55+45)
=100+100+100
=100x3
=300
k mk nha bn vvvvvvvvvvvvvvv