Ju Zhen Cheng Fa Bu Jiu Shi Chao Cai Suan Shi Cai Ma? Xian Dai Miao Dong

Ju Zhen Cheng Fa Bu Jiu Shi Chao Cai Suan Shi Cai Ma?

Mei ci kan dao ju zhen cheng fa, ni shi bu shi nao hai li jiu fu xian chu da xue ke tang shang na ge bai hu zi jiao shou zai hei ban shang xie man gong shi, er ni zuo zai zui hou yi pai mo mo di xiang: Zhe wan yi dao di you shen me yong a?!

Bie ji. Jin tian zan men bu che gong shi, yong chao cai lai li jie ju zhen cheng fa.

Xiang xiang ni kai le yi jia xiao can guan, you 3 dao cai: fan qie chao dan, yu xiang rou si, ma po dou fu. Mei dao cai xu yao de yuan cai liao ke yi lie cheng yi ge biao: 3x5 de biao, jiu shi ju zhen. Hang shi cai, lie shi shi cai, shu zi shi yong liang.

Xian zai ni shuo: ming tian wo yao zuo 3 fen fan qie chao dan, 2 fen yu xiang rou si, 4 fen ma po dou fu. Zhe jiu shi yi ge xiang liang: [3, 2, 4].

Na me wen ti lai le --- ni xu yao qu cai shi chang mai duo shao shi cai? Ni yao suan: ji dan = 3x2 + 2x0 + 4x0 = 6, fan qie = 3x3 + 2x1 + 4x0 = 11... Kan! Ni gang cai zuo de, jiu shi ju zhen cheng fa.

Yi dian dou bu shen mi, jiu shi cai liang xiang liang x cai dan ju zhen = gou wu qing dan.