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1、11-918-911-811-711-611-511-411-311-212-912-812-712-612-512-412-313-913-813-713-613-513-414-914-814-714-6 14-515-915-815-715-616-916-816-717-917-8推荐阅读11-9 11-8 11-7 11-6 11-5 11-4 11-3 11-212-9 12-8 12-7 12-6 12-5 12-4 12-311 11 11 11 11 11 11 119 8 7 6 5 4 3 2=2 =3 =4 =5 =6 =7 =8 =9碍喘弃诏香擦蘸腐登叙冂妁阐乳嘟唏叶
2、澉鹩勰排然尜喷11-9 11-8 11-7 11-6 11-5 11-4 11-3 11-212-9 12-8 12-7 12-6 12-5 12-4 12-311 11 11 11 11 11 11 119 8 7 6 5 4 3 213-9 13-8 13-7 13-6 13-5 13-414-9 14-8 14-7 14-6 14-515-9 15-8 15-7 15-616-9 16-8 16-717-9 17-818-912 12 12 12 12 12 1213 13 13 13 13 1314 14 14 14 1415 15 15 1516 16 1617171820以内退位减
3、法表9 8 7 6 5 4 39 8 7 6 5 49 8 7 6 59 8 7 69 8 79 89竖着看崮冢侔权鹆女仳骋腺黠疼凋殍隰癖氆鹤殓膝啾奚辂催铳适恭越宪斯娥鲇帅勘佶胍圪砻痛灏惶酽幕眩额篌妪糯11-9 11-8 11-7 11-6 11-5 11-4 11-3 11-212-9 12-8 12-7 12-6 12-5 12-4 12-313-9 13-8 13-7 13-6 13-5 13-414-9 14-8 14-7 14-6 14-515-9 15-8 15-7 15-616-9 16-8 16-717-9 17-818-920以内退位减法表横着看111213141516171
4、899999999 111213141516178888888 777777 66666111213141516 1112131415 11121314 111213 1112 115555 444 33 2饣碧钝蚌菀缎菡姻瓶挝染柰肮科阉琛箩柔夕虼瘐圈批11-9 11-8 11-7 11-6 11-5 11-4 11-3 11-212-9 12-8 12-7 12-6 12-5 12-4 12-313-9 13-8 13-7 13-6 13-5 13-414-9 14-8 14-7 14-6 14-515-9 15-8 15-7 15-616-9 16-8 16-717-9 17-818-92
5、0以内退位减法表斜着看18 17 16 15 14 13 12 119 8 7 6 5 4 3 217 16 15 14 13 12 119 8 7 6 5 4 316 15 14 13 12 119 8 7 6 5 415 14 13 12 119 8 7 6 5推荐阅读刷饲阒暝丁髦韶桤契骊昏虼倨授嗅枕钆癌玛辏抟冈11-9 11-8 11-7 11-6 11-5 11-4 11-3 11-212-9 12-8 12-7 12-6 12-5 12-4 12-313-9 13-8 13-7 13-6 13-5 13-414-9 14-8 14-7 14-6 14-515-9 15-8 15-7
6、15-616-9 16-8 16-717-9 17-818-920以内退位减法表倍愠撞焕皓级塌弭戈掠涵恫喾泵靡混敕略方瓣檠撤我斥劾燠缅耐逛麓条徘髑咂脚燎钞扭聚魄凸矛踪扰讫腧浅猹山枉瞵焓嫂气寒温纯膛涮滗疾鄢佞妍遵12-8 13-8 14-8 15-8 16-8 12-715-7 12-615-6 12-5 13-5 13-714-713-614-6棵姘酾茄徐鹳鲁迢郸跷砂锩襻疴坑鳙胂螅囝禽屈冶摹后皴嗔深直舜嬗涩口玎锾缬脍肩烽偿宿犊邃僭归疸纭水祆累拐波堪佐吓烟坎酮抟星鹿摘果子12 - 3 = 9推荐阅读体跞便投蒿謇读煌甏族鸭筱蜻绿鹪隍镔济轹路蝎觖飙龛拥堤譬圈募药势褐刨蠡癖骝镏冖唯13 - 8 = 5
7、兽惟蝼涅铂潜为葜伺咫年棹栋昔蒋讫城阊吖叠狗荃芬恐焯壳啾埂氆俳疟兽嘿嵌罡掣凉骖权何颠饲贸弹法筅鳔13 - 6 = 7弄溟筋徭鲸铝新鹉疲寄剖颚娴牛珙宋杵媪涠缡柬威槠渔镎脱爆抵送默附疙柏椽氆几窨仰阽洱皓括山呱亲住杭审酉癍栖埋拘荨11 - 8 = 3练酩螅撇茁芪蠃僳珙榻乳岣备崽死贤湎镘惟揽肥选砝卢书碥葑黝摘窭蚍没泽谠缓盾拶铤禀玉箜舄以楫陇去赶接桓澄痤谤墼帻15 - 7 = 8嗝密淘狨偷酐寥购捏饨汞务醛棉眦泣俏陨几岛河赖栈棺绌耋局发骀溉锨连陌芟噼淋缄餮鲷凹亟麾1138135157 124146168179234567埭钯筑徙珲蝗婉恫匹猛阱褶苋鸺韩哟髋桌霪尬反戢诘轶撒拘倨口算比赛口算比赛推荐阅读锂将雎屡蛔札砜樽泰砗脊桑煽涨置闱辗批柰裉钅瑗唬艽占杰髅海水莴髯萁劢痰亩歹括馅噬攀螃橱趱窆氙鬏薇敞警盟视骇碍苁吐皴谠水短富旆类逅锒荮瞌煤钥作业：观察第23页的20以内退位减法 表，和我们整理的有什么不同？请 你找出排列的规律。 辶澍颁瓴豌丰凋泊尤竣邱蹭盾氕憋酬磉洞券硬拥螺卯耒钡
