二年级数学下册五《加与减》小小图书馆同步练习2北师大版.doc

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1、1小小图书馆 一、 填一填。1. 在里填上“” 、 “”或“” 。720-20720-700 692+132131+6936400+5006400-500 1000-750750+200二、 把下面的算式按得数大小,从大到小排列。600-147 275+637 706-249 624+157( ) ( ) ( ) ( )三、 猜猜我是几?(1)我比 245多 54。 ( )(2)我比 338少 29. ( )(3)129 比我少 148. ( )(4)我比最大的三位数少 66. ( )四、选择。(1)下面计算正确的是( ) 。A、1000-298=812 B、1000-298=802C、100

2、0-298=702 D、1000-298=712(2)妈妈要购买三件商品,1 号商品 305元,2 号商品 278元,3 号商品的加个看不清楚,只知道最高位百位上的数字是 4,妈妈的这次购物带( )元比较合适。A、900 B、1000 C、1100(3)最大的三位数与最大的两位数的和是( ) 。A、999+100=1099 B、999+99=1098C、999-99=900参考答案:一、填一填。22. 在里填上“” 、 “”或“” 。720-20720-700 692+132131+6936400+5006400-500 1000-750750+200二、把下面的算式按得数大小,从大到小排列。(275+637 ) ( 624+157 ) (706-249 ) (600-147 )三、猜猜我是几?(1) (299 )(2) ( 309 )(3) ( 277 )(4) (933 )四、选择。(1)C(2)C(3)B

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