1.9*32*125*0.25(用简便方法计算)
问题描述:
1.9*32*125*0.25(用简便方法计算)
答
1.9*32*125*0.25
=1.9*4*8*125*0.25
=1.9*(8*125)*(4*0.25)
=1.9*1000*1
=1.9*1000
=1900