  Inclusive multi-jet production is studied in proton-proton collisions at a
center-of-mass energy of 7 TeV, using the ATLAS detector. The data sample
corresponds to an integrated luminosity of 2.4 pb^-1. Results on multi-jet
cross sections are presented and compared to both leading-order plus
parton-shower Monte Carlo predictions and to next-to-leading-order QCD
calculations.
