\(4218:\left(2.3\right)=4128:6=4128:2:3=688\)
4218:(2.3)
C1:
4218:(2.3)=4218:6
=703
C2:
4218:(2.3)=4218:2:3
=2109:3
=703
tinh bang 2 cach :476*[45+55]
tinh bang hai cach a)3/4 x 1/2 x 2
cach 1 : .....................................................
cach 2 : .....................................................
b) (3/4 + 1/2) x 5?7
cach 1 : .................................................................
cach 2 : .................................................................
tinh bang 2 cach 4095 : 315 -945:315
tinh bang hai cach : {3/4+1/2}*5/7
tinh bang 2 cach
[35,7 +2,8 ] *3
tinh bang 2 cach
a, ( 25 + 45 ) : 5
b, 24 : 6 + 36 : 6
Tinh bang 2 cach (2/3+3/4)×1/2
tinh bang 2 cach
a 3/22 *3/11 * 22
tinh bang cach tuan tien:
1/2+2/4+8/4+9/2
