7. Решите примеры: 860 - 800 - 60 700 + 50 - 450 999 - 90 - 99 (80 - 45) : 5 = 6 98 - 84 : 7 = 86 90 - 51 + 9 = 98 5 * 9 + 7 * 6 = 84 5 * 9 - 7 * 6 = 3 5 * (9 - 7) * 6 = 60

Решение примеров: 1. \(860 - 800 - 60 = 60 - 60 = **0**\) 2. \(700 + 50 - 450 = 750 - 450 = **300**\) 3. \(999 - 90 - 99 = 909 - 99 = **810**\) 4. \((80 - 45) \div 5 = 35 \div 5 = **7**\) 5. \(98 - 84 \div 7 = 98 - 12 = **86**\) 6. \(90 - 51 + 9 = 39 + 9 = **48**\) 7. \(5 \times 9 + 7 \times 6 = 45 + 42 = **87**\) 8. \(5 \times 9 - 7 \times 6 = 45 - 42 = **3**\) 9. \(5 \times (9 - 7) \times 6 = 5 \times 2 \times 6 = 10 \times 6 = **60**\)