5 x 6 3 10 8 3 July 8, 2019 16 32 64 128 10 30 8 3 x 5 6 8 6 3 5 x 10 6 2 3 Tính 10/30 + x/3 x 5/6 5 x 5 x 5 x 5 x 5 5 x 7 = 35 5 x 5 x 5
