1 5 x 6 28 July 8, 2019 16 32 64 128 1 x 4 1 x 6 5 28 6 x 1 )+ 2 x 5 )= 28 1 5 6 11 x 28 6 x 5 28 1 6x 1 5 6 11 x 28 คํา ตอบ 1 5 x 2 6 1/2 x 6 x 5 5 1/2j x 14
