(2-2):2x2=0
(2x2-2):2=1
2:2+2:2=2
2+2-(2:2)=3
2x2:2x2=4
k mk nhe
2+2-2-2=0
(2:2):(2:2)=1
(2:2)+(2:2)=2
2.2-(2:2)=3
2.2-(2-2)=4
tk nha
2+2-2-2=0
2:2+2-2=1
2:2+2:2=2
2+2-2+2=4
2+2-(2:2)=3
câu tra lời là:[2-2]+[2-2]=0
[2:2]+[2-2]=1
[2:2]+[2:2]=2
[2x2]-[2:2]=3
[2+2]x[2:2]=4