1．Shauna takes five tests,each worth a maximum of 100 points.Her scores on the first three tests are 76，94，and 87.In order to average 81 for all five tests,what is the lowest score she could earn on one of the other two tests？（　?。?br />Shauna參加了五次測試，每次測試的最高分是100分。她在前三次測試中的分?jǐn)?shù)分別是76、94和87。為了在所有五次測試中平均得到81分，她在其他兩次測試中的最低分是多少？（　?。?/div>

2．Four friends do yardwork for their neighbors over the weekend,earning 15，20，25，and40，respectively.They decide to split their earnings equally among themselves.In total how much will the friend who earned＄40 give to the others？（　　）
四位朋友在周末為鄰居做園藝工作，分別賺了15、20、25和40美元。他們決定平均分配他們的收入。那位賺了40美元的朋友將給其他人多少錢？（　?。?/div>

3．Isabella had a week to read a book for a school assignment.She read an average of 36 pages per day for the first three days and an average of 44 pages per day for the next three days.She then finished the book by reading 10 pages on the last day.How many pages were in the book？（　　）
Isabella學(xué)校作業(yè)是一個(gè)星期讀完一本書。她在前三天平均每天讀了36頁，接下來的三天平均每天讀了44頁。然后，她在最后一天讀了10頁并讀完了這本書。這本書有多少頁？（　?。?/div>