5 4 9 x 3 2 7 July 8, 2019 16 32 64 128 5 6 7 9 x 4 3 1 2 4 x 5 )+ 2 x 9 )= 3 x 7 )- 1 9 10 6 5 x 3 2 7 4 6 4 x 9 5 7 x 3 2 3 5 x 2 7 chia 4 9 5 x 7 = 35 5 3 - 9 * (-4 4) 9 5-4 3-7 5
