在“经典诵读”活动中，有同学在读下面两首诗的时候提出两个问题，请你帮助解决。
                                                                                           登岳阳楼（杜甫）
                                                                 昔闻洞庭水，今上岳阳楼。 吴楚东南坼，乾坤日夜浮。
                                                                 亲朋无一字，老病有孤舟。 戎马关山北，凭轩涕泗流。
                                                                                       与夏十二登岳阳楼（李白）¹
                                                                楼观岳阳尽，川迥洞庭开。 雁引愁心去，山衔好月来。
                                                                云间连下榻，天上接行杯。 醉后凉风起，吹人舞袖回。
注释：1 开元二年(759)，李白流放途中遇赦，回舟江陵，南游岳阳而作此诗。夏十二，李白朋友，排行十二。

4.9×10.1=____

若|m+3|+（n﹣2）²=0，则m+n的值为（　　）

    Today is the sixth of May. It is Nancy's birthday. She is eleven years old. There is a birthday party in the evening in her home. Many friends come. They all have a lot of fun at the party. Helen is listening to music. Yang Ling is playing the piano. Wang Bing and Mike are playing computer games. Now, it is time for the birthday cake. All the children sing “Happy Birthday” together for Nancy. Then, Nancy makes a wish, blows out the candles and cuts the cake. Everyone enjoys the party very much.