功課問題.急

A)
(+7)(-8)(+5)
= (-56)(+5)
= -280

B)
(-2)(-4)(-6)
= (+8)(-6)
= -48

C)
(-5)(+2) / (-10) (/ 代表分數線)
= (-10) / (-10)
= 1

D)
(-24)÷(-3)÷(-2)
= (+8)÷(-2)
= -4

E)
(-6) * (-1/2) * (-1/3)
= (+3) * (-1/3)
= -1

F)
(-1/2)÷(+2)*(-4)
= (-1/2)*(+1/2)*(-4)
= (-1/4)*(-4)
= +1

A:(+7)(-8)(+5)
=(-56)(+5)
=-280

B:(-2)(-4)(-6)
=(+8)(-6)
=-48

.....(-5)(+2)
C: －－－－
.......(-10)
......-10
= －－－－
......-10
=1

D:(-24)÷(-3)÷(-2)
=(+8)÷(-2)
=-4

.....................1..........1
E:(-6)×(負 －)÷(負－)
.....................2..........3
...................1
=(+3)÷(負－)
...................3
=-9

..........1
F:(負－)÷(+2)×(-4)
..........2
=(-1)×(-4)
=+4

A)-280
之後唔明你想問乜~一間間個D唔知咩黎
D)8(-2) =-4
之後又係唔明咩黎=.=.........