3 14 x 9 5 July 8, 2019 16 32 64 128 X 3 14 9 =- 5 7 3 x 9 )-( 5x 2 )= 14 3 x 9 )-( 5x 2 )= 14 simplified 7 9 x 3 14 5 8 3 7 x 5 9 x 14 15 14 x 5 3 x 9 10 Tính 7 9 x 3 14 5 8 7 9 x 3 14 chia 5 8 bằng 7 9 x 3 14 chia 5 8 3 14×9 3 14 x 9 5 + 9 = 14 3 14×5
