Ответ:9 · 4 = 365 · 4 = 204 · 6 = 244 · 7 = 284 · 8 = 324 · 4 = 1624 : 4 = 616 : 4 = 428 : 4 = 79 + (14 − 5) = 9 + 9 = 1824 − (19 + 4) = 24 − 23 = 138 − (17 − 9) = 38 − 8 = 30