10 x 3 2 7 mũ 2 1 mũ 10 July 8, 2019 16 32 64 128 10 x 3 chia 2 7 mũ 2 trừ 1 mũ 10 2 3/7 - 10 х 1/2 10 ×7= 2 10 x 10 x 10 1/2 x 7
