2 3 x 6 7 5 7 July 8, 2019 16 32 64 128 5 x 3 )- 2 x 7 )+ 7 2x 6 )= 7 X 7 8 x 3 7 6 5 x 2 X 7 8 x 3 70 6 5 x 2 5 2 x 3 7 3 14 chia 6 7 5 x 7 = 35 2 6×3 7 2 + 3 + 4 + 5 + 6
