The answer is 793. Simply add the numbers together like you would for two plus two. To check your work, a calculator is the best option.
9907 + 657 = 10564
65789+657=66446.
989 + 657 = 1646
136 + 136 = 272
45 + 453 + 567 + 234 + 1097 + 35 + 45 + 657 = 3133
136 + 909 = 1045
136 + 19584765 = 19584901
136 + 8 = 144
12,657+11,259=23,916
o.657 0.1 + 0.757
136
136