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a ) ( -4 ) . ( +125 ) . ( -25 ) . ( -6 ) . ( -8 )
=[(-4).(-25)].[125.(-8)].-6
=[100.(-1000)].(-6)
=-100000.(-6)
=60000
b ) ( -98 ) . ( 1 - 246 ) - 246 . 98
a) ((-4)x(-25))x((-125)x(-8))x(-6)
=100x1000x(-6)
=100000x(-6)
=-600000
b) =(-98)x(-245)-246x98
= 98 x 245 - 246x98
= 98x(245-246)
=98x(-1)
=-98
a)(-4).(125).(-25).(-6).(-8) b) (-98).(1-246)-246.98
=((-4).(-25)).(125.-8).-6 =(-98).(-245)-246.98
=100.-1000.6 =24010-92708
=-600000 =-68698
\(\text{(-4).(+125).(-25).(-6).(-8)}\)
\(=\left[\left(-4\right).\left(-25\right)\right].\left[125.\left(-8\right)\right].\left(-6\right)\)
\(=100.\left(-1000\right).\left(-6\right)\)
\(=-100000.\left(-6\right)=600000\)
\(\text{(-98).(1-246)-246.98}\)
\(=98.\left(245-246\right)\)
\(=98.\left(-1\right)\)
\(=-98\)
\(\text{63.(-25)+25.(-23)}\)
\(=25.\left[\left(-63\right)+\left(-23\right)\right]\)
\(=25.\left(-86\right)\)
\(=-2150\)
chúc bạn học tốt
\(a,\left(-4\right).125.\left(-25\right).\left(-6\right).\left(-8\right)\)
\(=\left[\left(-4\right).\left(-25\right)\right].\left[125.\left(-8\right)\right].\left(-6\right)\)
\(=100.\left(-1000\right).\left(-6\right)\)
\(=-100000.\left(-6\right)\)
\(=600000\)
(-4).125(-25)(-6)(-8)
= [ ( -4 ) . ( -25 ) ] . [ 125 . ( -8 ) ] . ( -6 )
= 100 . ( -1000 ) . ( -6 )
= -100000 . ( -6 )
= 600000
1)
a)-57.11= -57.(10+1)=(-57.10)+(-57.1)=-570+(-57)=-627
b)75.(-21)=(30+45).(-21)=(-21.30)+(-21.45)=-630+(-945)=-1575
2)
a) (-4).(+125).(-25).(-6).(-8)=[(-4).(-25)].[125.(-8)].(-6)=100.(-1000).(-6)=600000
b)(-98).(1-246)-246.98
=-98.1-(-98).246-246.98
=-98+98.246-246.98
=-98+(98.246-246.98)
=-98+0
=-98
bài 1 chưa hỉu cho lém
bài 2: a) = 600000
b) = -98
tick mk nha bn
a, (-4).(+125).(-25).(-6).(-8) =(-4).125.(-25).(-6).(-8)=(-500).(-25).(-6).(-8)=12500.(-6).(-8)=(-75000).(-8)=600000
b,(-98).(1-246)-246.98=(-98).(-245)-24108=24010-24108=-98
k mk nha!!!!