4 x 7 15 July 8, 2019 16 32 64 128 4 x 7 )- 15 3x X 4 7 = 15 3 4 7 x 150 4 x 2 + 7 15 4 5 x 7 15 4 x 7 15 x 10 11 4 x 7 15 Х 4 15 7 20 90 4 х 7 15 4 x 1 )= 15x 7 2x 5 4 7 x 14 15 4 х 1 )= 15х 7 2х 5 12 х 4 7 15 15 4 x 7 9 4 3 x 5 2 x 7 15
