把40﹣32=8和8×5=40写成一道两步计算的算式是40﹣32×5 .
=== ÷15 4== .
0.375= :40=21÷ = %.
﹕25=0.4= ÷5= %=.
== ÷9=44÷ .
÷12===15: = %= .