a)  ( − 125 ) . ( − 5 ) .8. ( − 2 ) = ( − 125 ) .8. ( − 5 ) . ( − 2 ) = − 1000.10 = − 10000

b)  ( − 127 ) . ( 1 − 582 ) − 582.127 = ( − 127 ) . ( − 581 ) − 582.127 = 127.581 − 582.127 = 127 ( 581 − 582 ) = 127. ( − 1 ) = − 127

c)  ( 43 − 13 ) . ( − 3 ) + 27. ( − 14 − 16 ) = 30. ( − 3 ) + 27. ( − 30 ) = ( − 30 ) .3 + 27. ( − 30 ) = ( − 30 ) . ( 3 + 27 ) = ( − 30 ) .30 = − 90

d)  125. ( − 61 ) . ( − 2 ) 3 . ( − 1 ) 2 n = 125. ( − 62 ) . ( − 8 ) .1 = 125. ( − 8 ) . ( − 62 ) = − 1000. ( − 62 ) = 62000

C =[125.(73-75)]:(-25)2

=125.(-2):(-25).2

=-250:(-50)

=5

E=125.9.(-4).(-8).25.7

=125.(-8).25.(-4).7.9

=-1000.(-100).63

=6300000

C = ( 125 . 73 - 125 . 75 ) : ( -50)

C = 125 .( -2 ) : (-50)

C = -250 : -50

C =  50

G = ( -3 )²+( -5)³: l -5 l

G = 9 + ( -125) : 5

G = 9 + ( -25 )

G= ( -16 )

E = 125 .9.*( -4 ) . ( -8) .25.7

E = 25.5 .( -4 ) .9 .2. ( -4 ) .25 .7

E =( -100 ).10.( -100).63

E = 10000.630

E = 630000

**** mha

125 . ( − 61 ) . ( − 2 ) 3 . ( − 1 ) 2 n = 125 . ( − 62 ) . ( − 8 ) . 1 = 125 . ( − 8 ) . ( − 62 ) = − 1000 . ( − 62 ) = 62000

a)54 : 3³ + 6.5²

= 54 : 27 + 6.25

= 2 + 150

= 152

b) 45.26 + 45.74 - 1500

= 45.(26 + 74) - 1500

= 45.100 - 1500

= 4500 - 1500

= 3000

c) 125 + 132 + (-125) + (-21)

= [125 + (-125)] + [132 + (-21)]

= 0 + 111

= 111

d) 11 - 13 + 15 - 17 + 19 - 21 + 23 - 25

= -2 + (-2) + (-2) + (-2)

= (-4) + (-2) + (-2)

= (-8)

25.6.4.8.125

=(25.4).(125.8).6

=100.1000.6

=100000.6

=600000

\(25\cdot6\cdot4\cdot8\cdot125\)

\(=25\cdot4\cdot6\cdot8\cdot125\)

\(=100\cdot6\cdot1000\)

\(=100000\cdot6\)

\(=600000\)

a) (-125) . 4

= -500

b) (-2017) . (-2016) . 0

= 0

c) (-12) . (-11)

= 132

d) (-4) . (-8) . (-25) . (-125)

= [(-4).(-25)].[(-8).(-125)]

= 100.1000

= 100000

e) (-2).(-5).(-7)

= [(-2).(-5)].(-7)

= 10.(-7)

= -70

a: \(\left(-125\right)\cdot4=-\left(125\cdot4\right)=-500\)

b: \(\left(-2017\right)\cdot\left(-2016\right)\cdot0=0\cdot2016\cdot2017=0\)

c: \(\left(-12\right)\cdot\left(-11\right)=12\cdot11=12\cdot10+12=120+12=132\)

d: \(\left(-4\right)\cdot\left(-8\right)\cdot\left(-25\right)\cdot\left(-125\right)\)

\(=4\cdot8\cdot25\cdot125\)

\(=4\cdot25\cdot8\cdot125\)

\(=100\cdot1000=100000\)

e: \(\left(-2\right)\cdot\left(-5\right)\cdot\left(-7\right)\)

\(=-7\cdot2\cdot5\)

\(=-7\cdot10=-70\)