a: \(2\cdot25\cdot4\cdot50\)
\(=\left(2\cdot50\right)\cdot\left(25\cdot4\right)\)
\(=100\cdot100=10000\)
b: \(\left(-125\right)\cdot5\cdot\left(-16\right)\cdot\left(-8\right)\)
\(=-125\cdot5\cdot16\cdot8\)
\(=-\left(125\cdot8\right)\cdot\left(5\cdot16\right)\)
\(=-80\cdot1000=-80000\)
c: \(5^2\cdot3^3\cdot2\)
\(=25\cdot27\cdot2\)
\(=\left(25\cdot2\right)\cdot27=27\cdot50=1350\)
d: \(\left(-4\right)\cdot3^2\left(-5\right)^3\)
\(=\left(-4\right)\cdot\left(-125\right)\cdot9\)
\(=500\cdot9=4500\)
Đúng 2
Bình luận (0)
a) 2⋅25⋅4⋅50
=(2⋅50)⋅(25⋅4)
=100⋅100
=10000
b) (−125)⋅5⋅(−16)⋅(−8)
=−125⋅5⋅16⋅8
=−(125⋅8)⋅(5⋅16)
=−80⋅1000
=−80000
c) 5\(^2\)⋅3\(^3\)⋅2
=25⋅27⋅2
=(25⋅2)⋅27
=27⋅50
=1350
d) (−4)⋅3\(^2\)(−5)\(^3\)
=(−4)⋅(−125)⋅9
=500⋅9
=4500
Đúng 0
Bình luận (0)
