根据38×56=2128,直接写出下面算式的得数.3.8×0.56= 380×5.6= 2128÷56= 21.28÷0.56= .
2:5= :10=10÷ = (填小数)
0.4= : =10: = :35= %
=20÷ =8: =0.8= %= .
=3÷2=15: = %= (小数)
0.6=3: = ÷15= 成= %