neikeguozhenongliejuzixiangdetangguo，xiangyimeixiaoxiaodeyaochi，zaichenmobeiquruhekonghuangfengsuodexinkouqiaokaileyidaoxiweidefengxi。badaodetianweimanhengdichongshuazhehoulonglidekuse，yezanshimohulejiangtaishangwanglaoshineiruilidemuguanghejiaoshililingrenzhixidexuanxiao。tahanzhetang，shejiandizhejianyingguanghuadetangqiu，ganshouzhetazaikouqianglihuanmanronghuadeguocheng，fangfoneishiyigewushengdejishiqi，zhangliangzhexiake**shanshanlaichidejuli。xiaoxiaoguzhesaibangzi，nulijujiaozhelingyikelvsetangguo，yanjingliangliangdikanzheta，daizheyizhongxiaoxinyiyide、dengdaiwuyunsanqudeqidai。dangjianruidedian**zhongyusiliekongqi，chenmojihushilikejiangzijizhongxinsuohuikaoqiangdezuoweishenchu，xiangyizhishoujinghouxunsutuihuiqiaolidewoniu。neikeronghualeyibandetangguonianzaijiuchishang，liuxiayizhongtiannideyuwei，hexintoudeyinyingjiuchanbuqing。
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xiawudeshuxueke，kongqilijinbengdexiansihusongchileyixie。shuxuelaoshishigetoufahuabai、mianrongheaidenanlaoshi，xingzhang，shuohuamanyouyoude，xiangshainuandemianxu。tanazhefenbizaiheibanshanghualejigejiandandeshuzihejiahao，shengyinwenhe：“tongxuemen，kanzheili，1+1dengyujiya？”
jiaoshilixiangqicanchabuqi、daizheshitandehuida：“2！”
“duila！”zhanglaoshixiaohehedidiantou，zaiheibanshangxiexiadadade“2”。
chenmoyijiudizhetou，shixianluozaizijitankaideshuxuelianxibenshang。zhanxindezhizhangsanfazheyoumoqingxiang，yinzheqianlansedegezi。tashouliniezheneizhixuedejianjiandeqianbi，zhijianbingliang。shangwuyuwenkebeifazhandeyinyingxiangyikuaichenzhongdeshibu，yijiuchenchendiyazaitaxintou。tabugantaitoukanheiban，gengbugankanlaoshi，shengpazaiyinlairenheyidaoshenshidemuguang。tazhishidingzhebenzishangneixiekongbaidegezi，xiangdingzheyigegedengdaitianmande、anquandedongxue。
zhanglaoshizaiheibanshangyouxiexiayidaoti：“2+3=？”tahuanshijiaoshi，“naweixiaopengyouzhidaodaanya？”
duanzandechenmo。jigehaiziyouyouyuyudijuqilexiaoshou，xianggangmaotoudeqienuochunsun。xiaoxiaoyejuleshou，xiaolianbengzhe，daizhedianjinzhang。
zhanglaoshiweixiaozhe，muguangzaijushoudejigehaizilianshangsaoguo，zhengzhunbeidianyigemingzi，shixianquewuyizhonglveguolekaoqiangneigeyizhidizhetoudeshouxiaoshenying。neigehaizi，congshangkeqi，toujiumeitaiqilaiguo，qianbijianzaikongbaidebenzishangxuanzhe，jiujiumeiyouluoxia。
“kaochuangbian，chuanlanyifudeneiweinantongxue，”zhanglaoshideshengyinyijiuwenhe，queqingxidichuanbianlejiaoshi，“nilaihuidayixia，2+3dengyuji？”
suoyoudemuguangshunjianjujiaoguolai。
chenmodeshentimengdijiangzhu，xuanzaikongzhongdeqianbijian“pada”yisheng，qingqingdianzaikongbaidelianxibenshang，liuxiayigetuwudemodian。neidianmojixiangyikeheisedexinzang，zaitayanqianzhouranfangda。taganjuezijidexueyeshunjianyongxiangtouding，erduoliwengmingzuoxiang。shangwubeiwanglaoshidianmingfazhandebinglengjiyihecikerumangzaibeidemuguangjiaozhizaiyiqi，jihujiangtadongjiezaizuoweishang。
tasisidingzheneigemodian，fangfoneishiweiyinengzhuazhudedongxi。houlongbeiwuxingdetieqianezhu，yigeziyejibuchulai。jiaoshilidekongqininggule，daizhelingrenzhixidezhongliangyazaitashouxuedejianbangshang。
xiaoxiaojidezaizuoweishangniudongleyixia，xiaozuiwushengdikaihezhe，yongkouxingpinmingdianshi：“5！shi5！”
shijianyifenyimiaodiliushi。zhanglaoshilianshangdewenhexiaorongjianjiandanqu，meitouweiweicuqi，sihuzaipanduanzheihaizishiguoyujinzhang，haishizhendebuhui。zhouweikaishixiangqixiweideyilunshengheyayidedixiao。
jiuzaizhanglaoshizhunbeikaikourangtazuoxiashi，chenmoneizhifangzaizhuoxia、jinwochengquandezuoshou，jiqihuanmandi、daizheyizhongguzhuyizhidezhandou，taileqilai。tameiyoukanrenheren，zhishishenchulewugenxishoudeshouzhi，zhizhidizhixiangheibandefangxiang。
neishiyigewushengdehuida。
jiaoshilishunjiananjingxialai。suoyoudemuguangdouluozaineizhiguzhidishenxiangheiban、weiweizhandoudewugenshouzhishang。lianzhanglaoshiyelengzhule，kanzheneizhichenmodeshou，youkankanchenmodichuidejihumaijinxiongkoudenaodai。
duanzandechenjihou，zhanglaoshilianshangzhongxinluchulexiaorong，shenzhibigangcaigengwenhelexie。“henhao！”tadiandiantou，shengyindaizhezanxu，“zheiweitongxueyongxingdonggaosuwomen，daanshi5！feichangbang！”tanaqifenbi，zaiheibanshangxiexiayigedadade“5”。
yazaichenmoshenshangdewuxingzhongyasihusuizheneige“5”dechuxianersongdongleyisi。taxiangbeichouganleliqi，neizhishenchudeshouwulidichuiluoxialai，zhijianbingliang。tayijiubugantaitou，danjinbengdejibeijibukechadisongchileyidiandian。ejiaodelenghanshunzhebinjiaohualuo。
zhanglaoshimeiyoujixuzhuiwen，ershikaishijiangjiexiayidaogengjiandandeti，jizheigexianranbeihehuailedehaiziyidianchuanxidekongjian。
jiexialaideshijian，chenmoxiangyizuochenmodegudao，jiangzijiyuketangdehudongchedigejue。tazhishidizhetou，qianbijianzailianxibenshangjixiediyidong。tameiyoutingzhanglaoshijiangdeneirong，yemeiyoukanheibanshangdeliti。dangzhanglaoshirangdajiazailianxibenshangzuojidaojiandandejiafatishi，qitahaizihaizaibenzhuodishushouzhi、huaquanquan，chenmoqueyijingzaibenzishangfeikuaidixiexialedaan。
tadebijihetaderenyiyang，chenmoergongzheng，meiyigeshuzidouxiedefangfangzhengzheng，yisibugou。5+1=6，3+2=5，4+0=4……jiandandesuanshizaitabixialiuchangdihuachu，xiangzaoyikeyinzainaohailidebenneng。tazuodehenkuai，xiemanleyixingyouyixingkongbaidegezi，fangfozhiyouchenjinzaizheizhongchuncuide、wushengdeshuzishijieli，cainengzanshitaolizhouzaoneilingrenzhixidexuanxiaohemuguang。
zhongyu，xiake**zaicixiangqi。chenmojihushilikeheshanglelianxiben，jiangtaheqianbiyiqisaijinjiaobiandeshenlanseshubaoli。dongzuoxunsudejinhucangcu。
“chenmo！”xiaoxiaodeshengyindaizhemingxiandequeyue，tabaozhezijideshubenhemilaoshuwenjuhe，xiangzhixiaotuziyiyangbengdaotazuoweipang，“nigangcaihaolihai！zhanglaoshidoukuanile！”taxianranxuanzexingyiwanglechenmozhiqiandechenmohezhandou，zhijizhuleneigewushengde“5”helaoshidebiaoyang。
chenmomeishuohua，zhishichenmodibeiqishubao。
“duile！”xiaoxiaoxiangqishenme，xianbaosidecongzijishubaolitaochuyigexiaodongxi，“nikan！wozuotianyingde！”neishiyikebolizhu，zhongxindaizhexuanlideluoxuanhuawen，zaixiyangxiazheshechucaihongbandeguangze，“songjini！jianglinidaduiti！”taxiaoxixidibazhuzisaidaochenmoshouli。
bingliangde、daizhexuanlihuawendebolizhuluoruzhangxin，chuganmosheng。chenmoditoukanzheta，youkankanxiaoxiaoneizhanghaowuyinmai、chongmanchuncuixiyuedexiaolian。shangwuyuwenkedebingleng，xiawushuxuekeneizhixideyalihewushengdezhandou……sihudoubeizheikexiaoxiaode、xuanlidezhuzizheshechudeguangmangqusanleyixie。tamomodibazhuzifangjinlekudouli。
liangrenbingjianzouchujiaoshi。caochangshangyijiuxuannao，danbiqishangwuruxueshidehunluan，yijingxiandeyouxulexuduo。xiyangjiangtamendeyingziladehenzhang。
“chenmo，”xiaoxiaobianzoubiantizhedishangdexiaoshizi，shengyinhurandilexialai，daizhediankunao，“gangcaizhanglaoshijiangdeneige……‘4+3’，woshushouzhitoushulehaojibian，zongjuedeshi6，kelaoshishuoshi7……”tazhouzhexiaolian，shenchuzijidexiaoshou，renzhendibaizhezhitou，“nikan，1、2、3、4，zaijia3ge，1、2、3……shi6ya！weishenmeshi7ni？”takunhuoditaiqitoukanzhechenmo。
chenmodejiaobumanlexialai。taceguotou，kanzhexiaoxiaotankaide、zhanzheqianbihuidexiaoshou，haiyoutalianshangneizhenshide、weileyidaojiandansuanshutierkunraoderenzhenbiaoqing。shangwubeifazhandebinglenghexiawuneiwushengdezhandoudailaidechenzhonggan，zaixiaoxiaozheichuncuide、guanyu“4+3”dekunhuomianqian，sihubeichongdanle。
tachenmoditingxiajiaobu，meiyoukanxiaoxiao，ershidunxiashen，suishoucongdishangjianqijikexiaoxiaode、huibaisedeeluanshi。tatankaizijidezhangxin，jiangqizhongsikeshizipaichengyipai，fangzaixiaoxiaojiaoqiandedimianshang。
xiaoxiaohaoqididunxialai，kanzheneisikeshizi。
chenmoyounaqilingwaisankeshizi，yike、yike、feichanghuanmandi，fangzaineisikeshizipangbian。tameiyoushuohua，zhishiyongshouzhidianlediandiyipaidesike，youdianlediandierpaidesanke，zuihou，zhijianhuaguosuoyoudeshizi，ranhoutaiqishou，zaixiaoxiaotankaideshouzhangshangfang，feichangqingxi、wushengdi，shuqileqigenshouzhi。
xiaoxiaodemuguangsuizhechenmodedongzuoyidong。congdiyipaishizi，daodierpaishizi，zaidaoneiqigenshuqide、chenmodeshouzhi。taxiaozuiweizhang，yanjingmanmanzhengda，yizhonghuangrandawudeguangmangshunjiandianliangletadelianpang。
“a！”tajingxidijiaochusheng，xiaoshouzhizhedishangdeshizi，“wodongle！4gejia3ge，shi……shi7ge！bushishu4gezaijia3geshouzhi！shishusuoyoude！”taxingfenditaitoukanzhechenmo，lianshangshijiekainantidechuncuixiyue，“chenmonihaocongming！zheiyangyikanjiumingbaile！”
chenmomeiyouhuiyingtadekuajiang，zhishimomodishouhuishou，badishangdeshizisuiyibokai。tazhanqishen，zhongxinbeihaoshubao。
xiaoxiaoyegenzhezhanqilai，bengtiaozhegenzaitashenbian，kunraoyisaoerkong，xiaozuiyoukaishijijizhazha：“yuanlaishizheiyang！mingtianzhanglaoshizaiwen，wojiuzhidaole！……”
xiyangdejinhuisamanguitu。chenmochenmodizouzhe，tingzheshenbianxiaoxiaohuankuaidexutao。kudoulineikexuanlidebolizhusuizhebufaqingqinghuangdong，mocazhebuliao，fachuxiweideshashasheng。taditoukanzhejiaoxiabeilazhangdeyingzi，neiyingzichenmodiyidongzhe，chuanguoxuannaodecaochang，chuanguopiaosanzhefancaixiangdeqingshixiang。shenhouneipianjuda、mosheng、chongmanbileidexiaoyuan，zaimusezhongjianjianyinqulunkuo。erzhangxincanliude、shizibingliangdechugan，hexiaoxiaoneihuangrandawushiliangqideyanjing，xiangliangdaoweiruoqueqingxideguangshu，chuantouleyitiandeyinmai，zaitaxindineipianchenjingdehuangyuanshang，touxialeyixiaopianduanzande、wennuandeliangban。