5.04×2.1的积是 位小数,11÷6的商用循环小数表示是 ,精确到十分位是 .
=10÷ = ÷0.3=.
==12÷ =≈ (保留两位小数).
12÷ == %= 折=0.6.
= :15=15÷ = %=0.6.
==8÷2==36÷ .