5x3 12 4 8 July 8, 2019 16 32 64 128 5 x 3 12 4 8 3 4 8x 12 )+ x 5 4 3 5 8 x 1 12 5 12 3 8 x 4 9 Tính 5 12 3 8 x 4 9 5 x 5 x 5 x 5 x 5 5 x 7 = 35 5 x 5 x 5 4 5 x 12