Answer:
2662626266273 + 7372727277272 + 28288383 - 828383833883 + 838383838 = 9207836381883
Step-by-step explanation:
Add: 2662626266273 + 7372727277272 = 10035353543545
Add: the result of step No. 1 + 28288383 = 10035353543545 + 28288383 = 10035381831928
Subtract: the result of step No. 2 - 828383833883 = 10035381831928 - 828383833883 = 9206997998045
Add: the result of step No. 3 + 838383838 = 9206997998045 + 838383838 = 9207836381883