-(7.8)X1.25X(-8)怎样用乘法运算法则?
问题描述:
-(7.8)X1.25X(-8)怎样用乘法运算法则?
答
-(7.8)X1.25X(-8)
=7.8×1.25×8
=7.8×10
=78
答
-(7.8) X 1.25 X (-8)
= 7.8 X 1.25 X 8
= 7.8 X (1.25 X 8)
= 7.8 X 10
= 78