7961
x 84
-----
31844
+63688
-------
668724
4524
x 56
-----
27144
+22620
-------
253344
17356
x 23
-----
52068
+34712
-------
399188
23815
x 16
-----
142890
+23815
-------
381040
16440 | 60
-120 | 274
----
444
-420
---
240
-240
---
0
15260 | 70
-140 | 218
----
126
- 70
---
560
-560
---
0
Ответ: 7961⋅84 = 668724; 4524⋅56 = 253344; 17 356⋅23 = 399188; 23 815⋅16 = 381040; 16 440 : 60⋅40 + 8888 = 19848; 15 260 : 70-60-7777 = -7619