判断题:28+125+72=(28+72)+125运用加法的交换律和结合律.( ) 该怎么选择?

来源:学生作业帮助网 编辑:作业帮 时间:2024/07/17 08:28:31
xWrF~tFXVW:&}:Hbl0۱Z [ I+J2?a=˞= /o;WS f.+,t#ZFyv7h??*U8~eڂHbm2,JP=z釟?{?nU|?'7!Dݽh۳U˫̰fA娆m):k (Fk4҈K#6$D5fK*X>? p{39ø!4K2ItR  sXu*  n&8TO3+R\HS flcFƐK͕ӄyDqLWu@33E90OXe2) ڣ|"nuQ@b3iu2Z z$h;ienr~9=oJ"Ƨh " 6ySRЖ!Dn7HGif;[ho.7=YYcZ`:4^QOS1b A}@}.Ӕ]uE"ǼlUtlEσ5A2/g2', `<nkrUwKeR+@a#aov#Na8ޠ  ѨD ݓt%>j hIY:Au L$wJ{ݰ t1~3ՔOjQ[YȺNSp78ǟ&&Mr὾\;a˪ʴQX0:k BDz O_J{ЍE -` п)]FM2\Uƛެشx#[SQ:+gN{p\5ML6-lpLKHnzїn:2/upvϤXQEqaKg0`WZd|Fv?"c"dttQŔe`8%(5]̺`&qiҰ/ +P&FmٙĄ/C4NREB]K)L'Wxo,'Γ9UT0&?w|WXڞ/P*$ tQy"VQ*B6*TX9SDx*>`s .Vi+"d:zwɻ -\!E*GS p-"}Udfw[Y\*Y> QR AC%I )nTGލ EmK~O7X"Wak؜