一根长方体木料长为6米,锯成两个等长的长方体时,表面积增加了400平方厘米,则这根木料的体积是 立方分米.
12÷ =0.25= %= :24== (填成数)
9÷ == :8= (填小数)
20: = ÷20==0.8= %
==36÷ = (填小数)
18: =0.25= %= ÷24=.