а) 56×206+44×206 = 56×206 + 44×206 = 100×206 = 20600
б) 128×698+256 = 128×698 + 256 = 89344 + 256 = 89600
а) 56×206+44×206 = 56×206 + 44×206 = 100×206 = 20600
б) 128×698+256 = 128×698 + 256 = 89344 + 256 = 89600