Ta có : 2 x 53 x 12 + 4 x 6 x 87 - 3 x 8 x 40
= ( 2 x 12 ) x 53 + ( 4 x 6 ) x 87 - ( 3 x 8 ) x 40
= 24 x 53 + 24 x 87 - 24 x 40
= 24 x ( 53 + 87 - 40 )
= 24 x 100
= 2400
P/s : ♫ Kb vs mk nha ♫
Cbht ❤️
so sánh
\(\frac{31}{95}\)và\(\frac{2012}{6035}\)