Answer
2700
Work Step by Step
$630\approx600\,\ \longrightarrow$ tens position is not 5 or greater, round down
$192\approx200\,\ \longrightarrow$ tens position is 5 or greater, round up
$271\approx300\,\ \longrightarrow$ tens position is 5 or greater, round up
$56\approx100\,\ \ \ \longrightarrow$ tens position is 5 or greater, round up
$703\approx700\ \ \longrightarrow$ tens position is not 5 or greater, round down
$454\approx500\ \ \longrightarrow$ tens position is 5 or greater, round up
$329\approx300\ \ \longrightarrow$ tens position is not 5 or greater, round down
$600+200+300+100+700+500+300=2700$
