(20-4)x0.25用简便运算
问题描述:
(20-4)x0.25用简便运算
答
(20-4)x0.25
=20x0.25-4x0.25
=5-1
=4
(20-4)x0.25用简便运算
(20-4)x0.25
=20x0.25-4x0.25
=5-1
=4