Вычисли: 50:50; 30:70; 670−600; 315−10; 18×5; 27×6; 85:5; 78:6; 36:18; 56:14.

\(50:50=1\); \(30:70\) не делится нацело; \(670-600=70\); \(315-10=305\); \(18\cdot5=90\); \(27\cdot6=162\); \(85:5=17\); \(78:6=13\); \(36:18=2\); \(56:14=4\).