全手工材料：全英文手工，一起发了

是用来做手工的，3-5岁和5岁以上 内容有更新，花花数量调整了。
Is It Math Or Magic? Brilliant Mental Math Short Cuts That Will Amaze Everyone! Fun With Figures is for those who think they are no good at maths and for those who are good at maths. It is for those would like to steal a little lightning. The book answers a need of our time, offering easy, enjoyable maths which improves mental agility and memory, promotes confidence and creativity ?as well as being useful in everyday life......链接:https://pan.baidu.com/s/1e2IcNhSe2sVVkUBE0_0yjQ