Ответ:\(436+259=695\);\(73\,569+1=73\,570\);\(680\cdot1000=680\,000\);\(792-456=336\);\(30\,000-1=29\,999\);\(95\,800:100=958\);\(828:3=276\);\(709\,318-300=709\,018\);\(138\,000+45=138\,045\).