A) (-127-73)+(208+92)

=-200+300

=100

B) 2353-473-2153-55+373

=(2353-2153)-(473-373)-55

=200-100-55

=100-55

=45

A) (-127-73)+(208+92)

=-200+300

=100

B) 2353-473-2153-55+373

=(2353-2153)-(473-373)-55

=200-100-55

=100-55

=45

A) Gọi số người đội đó là x (người) x=N*; 150《x《200

Vì

X:4

X:5.      =>x=BC (4;5;6)

X:6

Ta có

4=2.2

5=5

6=2.3

BCNN(4;5;6)=2.2.3.5=60

=>X=B(30)={0;60;120;180;...}

MÀ 150《x《200

->x={180}

Vậy đội đó có 180 người

B) hiện tại con cá chuồn chuồn đang ở vị trí là

-165+285=120 (cm)

Đ/s : 120 cm

X=-4+(-3)+(-2)+(-1)+0+1+2+4+5

X=(-4+4)+(-3+3)+(-2+2)+(-1+1)+5

X=0+0+0+0+5

X=5

=16.(-3)-[(-93)+(-11+8)3]

=16.(-3)-[(-93)+27]

=-48-(-66)

=48+66

=114

*=3

A=(2011+2019)+(2012+2018)+(2013+2017)+(2014+2016)+2015

A=4030+4030+4030+4030+2015

A=16120+2015

A=18135

- my best friend is very beautiful with long black hair and oval face

- yes, l do

- my favourite room in my house is my bedroom

- l live in an apartment

- my neighbourhood is very convenient

- yes, l can

Ha long bay 

- l want to visit is because is very beautiful

My neighbourhood is in Bac Tu Liem. My neighbourhood is very convenient because there are many thing in here. There are two supermarker , a big market , a cafe and many things in here. Not only that , the people in my neighbourhood are very friendly and helpful . That , l very like my neighbourhood . But my neighbourhood is far from my school. So l don't like this

Vì nó rất có hại cho cơ thể