Ответ:\(45\,326+34\,529\,999=34\,575\,325\).\(407\,865-4\,356=403\,509\).\(56\,219\,087+675\,421=56\,894\,508\).\(659\,000\,000+324\,156=659\,324\,156\).\(5\,643\,289+90\,876\,555=96\,519\,844\).