125乘2.5乘31加125乘2.5的簡便管道計算
125x2.5x31+125x2.5
=125x2.5x(31+1)
=125x2.5x32
=125x8x4x2.5
=1000x100
=100000
(125+16)×25有簡便運算嗎?
(125+16)×25
=141X25
=(100+40+1)X25
=100X25+40X25+1X25
=2500+1000+25
=3525
簡便計算;15÷(16×(0.25+0.125)}
15÷(16×(0.25+0.125)}
=15÷(16x1/4+16x1/8)
=15÷6
=2.5