二年级数学下册五《加与减》十年的变化同步练习2北师大版.doc

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1十年的变化 一、有空我帮忙1.爷爷家今年收苹果 385千克,收梨 279千克,爷爷家今年共收水果( )千克。2.一个加数增加 378,另一个加数减少 378,和( )。二、列竖式计算下列各题:386+287= 469+593= 764+968=369+917= 628+183= 623+277=246+489= 367+353= 404+513=三、脑筋转转转,答案全发现。1. 飞飞家的居住面积是 135平方米,比圆圆家的居住面积少 27平方米,圆圆家的居住面积是( )平方米。A、152 B、172 C、1622小春家养了 347只鸭子,养了 864只鸡,鸡和鸭子一共有( )只A、1211 B、1101 C 、1111四、把表格补充完整。加数 389 543 522 202 465 568加数 532 265 89 213 236 233和2参考答案:一:(1)664;(2)756。二:673;1062;1732;1286;811;900;735;720;917。三:(1)162;(2)A。四:921;808;611;415;701;801。

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