1. 2935 2935 2935
x 4 x 34 x 234
--------- ------------ ----------
11740 11740 11740
+ 8805 +8805
---------- 5870
99790 ------------
686790
2.(3561+2568) x (789365-789331)=
3561 789365 6129
+2568 -789331 x 34
--------- ----------- ----------
6129 34 24516
+18387
------------
208386
3. 23568 3072 6156 6156
+ 4365 +86532 +4104 +41040
568 365645 8208 820800
------------- ----------- ---------- -----------
28501 455249 38988 867996