试题 试卷
题型:单选题 题类:常考题 难易度:困难
分数和百分数及运算8336 10
① × ÷
② ÷23+ ×
③ +( + )
④35×
⑤( + )×20
18÷ = ×0.15= × = 6.8÷10%= (1+20%)×(1+30%)=
×75%= 2﹣ ÷ = 62﹣52= 3.6× + ×3.6= 3+5+7+9+11+13+15=
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