Question

Liu Ming wants to buy some school things. According to the list, if he buys twelve exercise books, four knives, five pens, double rulers and a pencil-box, he will pay    .

Thing	Knife	Pen	Exercise book	Ruler	Pencil-box
Price	￥2.50	￥15.00	￥3.00	￥1.50	￥16.00
Good news : If you spends more than one hundred yuan in buying pens, you will enjoy a 40% off for the whole list.

A. 140 yuan       B. 84 yuan        C. 56 yuan

Answer 1

A

試題分析：根據本題描述，他買十二本練習本，四把小刀，五支鋼筆，兩把尺子和一個鉛筆盒，根據價格表描述，列式為：3*12+2.5*4+15*5+1.5*2+16=140，故選A。
點評：解答本題首先要理解小題內容，然后結合價格表信息列式，然后算出得數。