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a)(-4).(-3).(-125).25.(-8)
=[(-4).25].[(-125).(-8)].3
=(-100).1000.3
=-100000.3
=-300000
b)(-4).9.(-125).25.(-8)
=[(-4).25].[(-8).(-125)].9
=(-100).1000.9
=-100000.9
=-900000
a, 32.(-64) - 64.68
= -64( 32 + 68)
= -64 .100
= - 6400
b, -54.76 + 46.(-76)
= -76.(54 + 46)
= - 76. 100
= - 7600
c, 75.18 + 18.25
= 18.(75 + 25)
= 18 . 100
= 1800
d, (-4).(3).(-125)(-25).(-8)
= 3.(-4. (-25).((-125).(-8)
= 3.100.1000
= 300000
(–4) . (+125) . (–25) . (–6) . (–8)
= [(–4) . (–25)] . [(+125) . (–8)] . (–6)
= (4 . 25) . [–(125 . 8)] . (–6)
= 100 . (–1000) . (–6)
= 100 . 1000 . 6 = 600 000
(-4).125.(-25).(-6).(-8)
=4.25.8.125.(-6)
=100.1000.(-6)
=-600000
(-4).3.(-125).(-8)
=4.3.125.(-8)
=12.(-1000)
=-12000
(-98).(1-246)-246.98
=98.(246-1)-246.98
=98.(246-1-246)
=98.(-1)
=-98
(-67).(1-301)-301.67
=67.(301-1)-301.67
=67.(301-1-301)
=67.(-1)
=-67
Chúc bn làm tốt hen!
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: \(\left(-4\right)\cdot3^2\left(-5\right)^3\)
\(=\left(-4\right)\cdot\left(-125\right)\cdot9\)
\(=500\cdot9=4500\)
( -4 ) . 3 . ( -125 ) . 25 . ( -8 )
= [ -4 . 25 ] . [ -125 . ( -8 ) ] . 3
= -100 . 1000 . 3
= -100 000 . 3
= -300 000
( -67 ) . ( 1 - 301 ) - 301 . 67
= ( -67 ) . 1 - 301 - 301 . 67
= -67 . 1
= -67
a, ( -4 ) . ( +3 ) . ( -125 ) . ( +25 ) . ( -8 )
= ( - 4 ) . ( + 25 ) . ( - 125 ) . ( - 8 ) . ( + 3 )
= 100 . 1000 . 3
= 100000 . 3
= 300000
b, ( -67 ) . ( 1 - 301 ) - 301 . 67
= ( - 67 ) . 1 + 67 . 301 - 301 . 67
= -67 . 1
= - 67
(-4).(+3).(-125).(+25).(-8) = (+3).[(-4).(+25)].[(-8).(-125)] = 3.(-100).1000 = -300000