Respuesta :
Answer:
sum is 19,999,998 and difference is 0
please brainleist my answer
Answer:
Step-by-step explanation:
The greatest number of 7-digits number is 9,999,999
The least number of 7-digits number........is 1,000,000
Their sum......................................................... is 10,999,999
Their différence ............................................. is 8,999,999