Answer:
876,080,119
Step-by-step explanation:
Well first you add the big numbers first 80,000+70,000,000+6,000,000+800,000,000
which would equal 876,080,000 then add the numbers that seem small which was 100+10+9 you actually wouldn't have to use a calculator.
Hope this helped, have a good rest of your day. -bbygurl1002♡
