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求一个整数的近似数练习一http://202.101.111.23/viewstaticres/SysContent2/d1/dd3/ddd90/1063764704046/1063764704046.swf =eh!eZ9 加法的意义和运算定律 -OKXfN] 加法的意义和运算定律例题http://202.101.111.23/viewstaticres/SysContent2/d1/dd3/ddd187/1063764715109/1063764715109.swf q 1u_ r 加法的意义和运算定律例题http://202.101.111.23/viewstaticres/SysContent2/d0/dd0/ddd194/1063764715734/1063764715734.swf &b2@+/ F 加法的意义和运算定律例题http://202.101.111.23/viewstaticres/SysContent2/d0/dd0/ddd142/1063764716078/1063764716078.swf 0TiDQ4}i[ 加法的意义和运算定律例题http://202.101.111.23/viewstaticres/SysContent2/d0/dd0/ddd39/1063764716765/1063764716765.swf BAT.> 加法的意义和运算定律练习http://202.101.111.23/viewstaticres/SysContent2/d1/dd3/ddd25/1063764717093/1063764717093.swf rm|,+{ 加法的意义和运算定律练习http://202.101.111.23/viewstaticres/SysContent2/d0/dd1/ddd33/1063764717718/1063764717718.swf \\d8ulu 加法的意义和运算定律练习http://202.101.111.23/viewstaticres/SysContent2/d0/dd1/ddd166/1063764718031/1063764718031.swf r "\<+$ 7 减法的意义 $:onKxVM 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-L2%,.E>4 求一个小数的近似数例题二http://202.101.111.23/viewstaticres/SysContent2/d1/dd3/ddd17/1063764853421/1063764853421.swf ~fz9PoC 求一个小数的近似数准备题http://202.101.111.23/viewstaticres/SysContent2/d1/dd3/ddd156/1063764853828/1063764853828.swf ^=w){]G 求一个小数的近似数练习一http://202.101.111.23/viewstaticres/SysContent2/d1/dd3/ddd81/1063764854406/1063764854406.swf en16hd>^W: 求一个小数的近似数练习三http://202.101.111.23/viewstaticres/SysContent2/d1/dd3/ddd154/1063764854718/1063764854718.swf R=L-Ulhk 求一个小数的近似数练习二http://202.101.111.23/viewstaticres/SysContent2/d0/dd0/ddd154/1063764855312/1063764855312.swf H$)otDOE 小数的加法和减法 [}"m4+ 小数加减与整数加减的异同http://202.101.111.23/viewstaticres/SysContent2/d0/dd0/ddd190/1063764862343/1063764862343.swf d-#yN:}0 小数加减法为什么要小数点http://202.101.111.23/viewstaticres/SysContent2/d0/dd0/ddd60/1063764862921/1063764862921.swf K`kWfPwp 小数加减法意义和计算法则http://202.101.111.23/viewstaticres/SysContent2/d0/dd1/ddd128/1063764863281/1063764863281.swf G}'\ 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