ô8Ëê,ÁùÄêºóÁ½ÈËÄêÁäºÍÊÇ30Ëê
Ϊʲôõ?
ΪΪ˽㡣ȻӣһãȻˣýƸ...
øô
ԽøߣǽŴ˼ﳤĸߵİְֻ裬ҲǽձȽϺãԳԵĶ...
ô?
ôõǣ4+9=13 ԣڽǣ13+9=22
ʽ,ô?
ݺͱʽɵ:2,ý2,ٳ2,õ.:...
Ϊʲô㳤ñúÿ
ŴءŴѧϵокһҲǽ̳иü̳еԽ٣Խ...
һ,ȳ,ȴС,Ϊʲ...
ĸõʱ˹ڱߣʱóھڱߺ...
ѧøķ֮һ,ôñȽ㰫? - ٶ...
ø1/4õ߿һô1+1/45/4ñȽ㰫145445 ...
ô20Ͽ?
ҾЩ˼飬ȵܵö20ϣδ̫ˣDzһˡܵܽԼ...
ý12,20,5ô...
꣬Ϳжϳô꣬ͱ˲ܶ˶ͬʱеģԶꡣ
ѧøķ֮һ,ôñȽ㰫 - ٶ֪ ...
ⷨDzοIJͬ,ñȽ㰫1/51øķ֮һ߳õķ֮һõ߿1...