Question

tính nhanh 

a)25*4*100*8

b)50*0.1*5²

Answer 1

Ta có :

a, \(25.4.100.8\)

\(=\left(25.4\right).100.8\)

\(=100.100.8\)

\(=80000\)

b, \(50.0,1.5^2\)

\(=5.1.5^2\)

\(=5^3\)

\(=125\)

Answer 2

a )  \(25.4.100.8=\left(25.4\right).100.8\)

\(=100.100.8\)

\(=80000\)

b ) \(50.0,1.5^2=5.1.5^2\)

\(=5^3=125\)