Sagot :
It is 8499....
It is the biggest
4- round down so 8400
And there's no more number bigger than 8499 to round to 8400
[tex]There's\ no\ need\ for\ the\ solution. \\ In\ this\ situation,all\ you\ have\ to\ do\ is\ \underline{trial\ and\ error} \\ \\ \underline{8,499\ is\ the\ answer}. \\ \\ Checking; \\ \\ \boxed{8,\underline{\underline{4}}99}\ therefore,\underline{round\ down} \\ \\ 8,499\to\boxed{\boxed{8,000}}. \\ \\ Hope\ it\ Helps:) \\ Domini[/tex]