要使5□26<5314,□里可以填 (只要填一种).
4÷5==20: = [小数].
12:18的前项减去8,要使比值不变,后项应该 .
3:5=18: = :20= ÷40= .
:10==9÷ = 小数.
== ﹕32=15÷ = (填小数)