解:已知1米=100厘米=1000毫米, 得1米9毫米=(1+9÷1000)米=(1+0.009)米=1.009米 1米9厘米=(1+9÷100)米=(1+0.09)米=1.09米 得1.009米<1.09米 得1米9毫米<1米9厘米 即1米9毫米和1米9厘米中,1米9厘米大.
解:已知1米=100厘米=1000毫米, 得1米9毫米=(1+9÷1000)米=(1+0.009)米=1.009米 1米9厘米=(1+9÷100)米=(1+0.09)米=1.09米 得1.009米<1.09米 得1米9毫米<1米9厘米 即1米9毫米和1米9厘米中,1米9厘米大.