试题 试卷
题型:单选题 题类:常考题 难易度:容易
比的意义和性质7889 10
× = + = ÷ = ﹣ ﹣ =
3.14×202= 5× = ÷40%= 1÷6× =
10× = × = × = ÷ =
÷ = × = 28× = ÷ =
65÷6.5%=
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