2 + 2 - 2 + 2 = ( 2 + 2 ) - ( 2 + 2 ) = 0
2 x 2 : 2 x 2 = ( 2 x 2 ) : ( 2 x 2 ) = 4 : 4 = 1
2 - 2 x 2 + 2 = ( 2 - 2 ) x 2 + 2 = ( 0 x 2 ) + 2 = 2
2 x 2 - 2 : 2 = ( 2 x 2 ) - ( 2 : 2 ) = 4 - 1 = 3
2 + 2 : 2 x 2 = ( 2 + 2 ) : 2 x 2 = ( 4 : 2 ) x 2 = 4
2-2+2-2=0
2-2+2:2=1
2:2+2:2=2
2x2-2:2=3
2-2+2+2=4
0= 2. 2 - 2 . 2
1 = 2: 2 + (2-2)
2 = 2 :2 + 2: 2
3 = 2. 2 -2:2
4 = 2 + 2- (2 - 2)
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
(2-2):2:2=0
2x2:2:2=1
(2-2):2+2=2
(2x2x2):2=3
(2:2)x2x2=4
2 + 2 - 2 - 2 = 0
2 - 2 + 2 : 2 = 1
2 : 2 + 2 : 2 = 2
2 x 2 - 2 : 2 = 3
2 x 2 x ( 2 : 2 ) = 4
22-22=0
22/22=1
2/2+2/2=2
(2+2+2)/2=3
2+2+2-2=4
1 cái chỉ 1 cách thôi 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