\(\frac{168\cdot2}{26\cdot4}=\frac{42\cdot1}{13\cdot1}=\frac{42}{13}\)
\(570-225\cdot2=570-450=120\)
168 x2:26x4 750 - 255 x 2
= 336 : 104 = 750 - 510
=3,2307692 ( sai đề ko bn) = 240
\(\frac{168\cdot2}{26\cdot4}=\frac{42\cdot1}{13\cdot1}=\frac{42}{13}\)
\(570-225\cdot2=570-450=120\)
168 x2:26x4 750 - 255 x 2
= 336 : 104 = 750 - 510
=3,2307692 ( sai đề ko bn) = 240
tinh gia tri cua bieu thuc . 570 -225 -167 + 67 = ?
Tinh gia tri bieu thuc [m + n ]:p neu m=5,n=19 va p=3 .Vay gia tri bieu thuc la:
bai 1 tinh gia tri cua bieu thuc 78 x m + 22 x m voi m =135
bai 2 tinh gia tri cua bieu thuc 78 x m + 42 x m -20 x m voi m =1035
bai 3 cho bieu thuc B = 119 x n - n x 9 bieu thuc B co gia tri bang 8470 khi n =............
tinh gia tri bieu thuc ;a+a+a+a+a+b+b+b+b+b.biet a + b=105
gia tri cua bieu thuc tren la...
tinh gia tri bieu thuc [12x2:2]-5
tinh-gia-tri-bieu-thuc-sau-biet-ab201171xa-28xa-30xa-73xb
tinh gia tri bieu thuc bang hai cach 347535:45
tinh gia tri cua bieu thuc:1680-135-178+73
tinh gia tri bieu thuc 1.5 + 1.8 +2.1 + ............................+4.5 +4.8