mình k rồi , bạn k vô mình đi . 300

\(60+40+55+45+10+90\)

\(=\left(60+40\right)+\left(55+45\right)+\left(10+90\right)\)

\(=100+100+100\)

\(=100.3\)

\(=300\)

\(nha^{ }\)

60+40+55+45+10+90

= (60+40) + (55+45) + (10+90)

= 100 + 100 + 100

= 300

Tổng trên bằng :

\(90+50+10+40+10+100\)

\(=\left(90+10\right)+\left(50+40+10\right)+100\)

\(=300\)

^v^ k nhé

90 + 50 + 10 + 40 + 10 + 100

= 300

ủng hộ mk nha mọi người 

cảm ơn trước

\(90+50+10+40+10+100\)

\(=\left(90+10\right)+\left(10+40+50\right)+100\)

\(=100+100+100\)

\(=100.3\)

\(=300\)

\(nha^{ }\)

1100

500

nha bn

số đó là

1100

và 500

ai k mình

minh fk lại cho

ko hề nói dối

\(1000+50+40+10\)

\(=1000+\left(50+40+10\right)\)

\(=1000+1000\)

\(=1000.2\)

\(=2000\)

\(50.60+50.40\)

\(=50.\left(60+40\right)\)

\(=50.100\)

\(=5000\)

\(Nha^{ }\)

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

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

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

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

\(=100.4\)

\(=400\)

nho gui tin nhan do

ok 

ko ghi lại đề 

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

=      100              100              100             100

=    100 x 4 

= 400

3000 đó nha

1200 

nha bn k mk nha bn

T H A N K  Y O U

\(1000+50+50+1000\)

\(=1000+\left(50+50\right)+1000\)

\(=1000+1000+1000\)

\(=1000.3\)

\(=3000\)

\(nha^{ }\)

\(50+60+40+50+50+45\)

\(=\left(50+50\right)+\left(60+40\right)+\left(45+55\right)\)

\(=100+100+100\)

\(=100.3\)

\(=300\)

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

50 + 50 + 50 + 50 = 200 nha

50+50+50+50=200

200 nha.

=250

kich mk nha

\(50+50+50+50+50=50.5=250\)

chuc bn hoc gioi!

the luon

ko noi xao

50+50+50+50+50=250

\(60+40+50+50+40+5+95+50+10\)

\(=\left(60+40\right)+\left(50+50\right)+\left(40+50+10\right)+\left(95+5\right)\)

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

\(=100.4\)

\(=400\)

nho gui tin nhan do

60 + 40  + 50 + 50 + 40 + 5 + 95 + 50 + 10

= 100 + 100 + 45 + 145 + 10

= 200 + 200

= 400

chúc bạn học tốt ^ _ ^

=(60+40)+(50+50)+(40+10+50)+(5+95)

=100+100+100+100

=400