代数乘法运算!一、(-4)×(-7)×(-25) 二、(-3/5)×8×(-4/3) 三、(-0.5)×(-1)×3/4×(-8)三、(-0.5)×(-1)×4/3×(-8) 是这道
2019-05-07
代数乘法运算!
一、(-4)×(-7)×(-25) 二、(-3/5)×8×(-4/3) 三、(-0.5)×(-1)×3/4×(-8)
三、(-0.5)×(-1)×4/3×(-8)
是这道
优质解答
一、
(-4)×(-7)×(-25)
=-100*7
=-700
二、
(-3/5)×8×(-4/3)
=8*4/5
=32/5
=6又2/5
三、
(-0.5)×(-1)×3/4×(-8)
= -(1/2)×)×3/4×(-8)
=- (1/2)×(3/4)×8
= - 3/8×8
= -3
一、
(-4)×(-7)×(-25)
=-100*7
=-700
二、
(-3/5)×8×(-4/3)
=8*4/5
=32/5
=6又2/5
三、
(-0.5)×(-1)×3/4×(-8)
= -(1/2)×)×3/4×(-8)
=- (1/2)×(3/4)×8
= - 3/8×8
= -3