123562426786
123456789 + 123456789 = 246913578
123456789 +987654321 =1111111110
the answer is 1111111110 SOURCE: my brain and a caluculater
123456790
735802578
12+123456789=123456801
123456789+987654321
12345678 + 12345678 = 2*12345678 = 12345678/5 *10 = 246,913,578
It is 77
A plus + a plus is a plus.
505
There are eighteen seventeens here. 18 times 17 is 306.