200 + 600 + 200 + 2000
= (200 + 600 + 200) + 2000
= 1000 + 2000
= 3000
k nha
200 + 600 + 200 + 2000 = 800 + 200 + 2000 = 1000 + 2000 = 3000
200+600+200+2000
=800+200+2000
=1000+2000
=3000
200 + 600 + 200 + 2000
= 800 + 200 + 2000
= 1000 + 2000
=3000
tk mình nha mình tk lại
200 + 600 + 200 + 2000
= ( 200 + 600 + 200 ) + 2000
= 1000 + 2000
= 3000
200 + 600 + 200 + 2000
= 800 + 200 + 2000
= 1000 + 2000
= 3000
