â´Â¤Ø³ chai20 (896) (180.183.114.*) [07 May 2015 15:33] #3622350 (1/2)
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6.1 à¹×éͷͧᴧÃÁ´Ó ÁÕ 10 àËÃÕÂæÅÐ 120 ºÒ·= 1,200
7.1 à¹×éͷͧᴧÁѹ»Ù ÁÕ 20+30=50 àËÃÕÂæÅÐ 120 ºÒ·= 6,000
8.1 à¹×éͷͧᴧ¼ÔÇä¿ ÁÕ 15 àËÃÕÂæÅÐ 120 ºÒ·= 1,800
ÃÇÁÂÍ´â͹ 9,000+100= 9,100 ºÒ·
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