1390+260400:30+804 = 1390+8680+804 = 10070+804 = 10874
10874
так как 280*930=260400:30=8680
32160:40=804
10070+804=10874
1390+260400:30+804 = 1390+8680+804 = 10070+804 = 10874
10874
так как 280*930=260400:30=8680
32160:40=804
10070+804=10874