50 + 50 + 90 + 10 + 100 + 100
= 50 x 2 + ( 90 +10 ) + 100 x 2
= 100 + 100 + 200
= 200 + 200
= 400
tk mik nhe chúc bn học giỏi
Theo đề ta có:
50 + 50 + 90 + 10 + 100 + 100
= (50 + 50) + (90 + 10) + 100 + 100
= 100 + 100 + 100 + 100
= 100 . 4
= 400
50 + 50 + 90 + 10 + 100 + 100 = (50+50) + (10+90) + (100+100)
= 100 + 100 + 200
= 200 + 200 = 400
\(50+50+90+10+100+100\)
\(=100+100+100+100\)
\(=100\times4\)
\(=400\)
\(50+50+90+10+100+100\)
\(=100+100+100+100\)
\(=100\times4\)
\(=400\)
Mày ơi dễ vãi
= (50+50)+(90+10)+100+100
=400
50+50+90+10+100+100
=(50+50)+(90+10)+100+100
=100+100+100+100
=400
50 + 50 + 90 + 10 + 100 + 100 = (50 x 2) + (100 x 3)
= 100 + 300
= 400
50+50+90+10+100+100=(50+50)+(10+90)+(100+100)
=100 +100 +200
=400