Ответ:30 000 − 1 = 29 999.73 569 + 1 = 73 570.138 000 + 45 = 138 045.680 · 10 = 6 800.32 100 + 300 = 32 400.99 999 + 1 = 100 000.154 · 100 = 15 400.5 000 : 1 000 = 5.