The 6-foot-9 forward was 7-for-10 from the floor, including 4 of 6 from long-range.
Uthoff finished with a season-low nine points on 2-for-13 shooting.
Melo Trimble had a game-high 18 points and six assists.
Stone scored a Terps freshman record 39 points against Penn State on Wednesday.
The Class of 2019 players give Maryland a head start in its long-term recruiting vision.
Jackson averaged the second-most points on the team last season (10.5) as a freshman.
“Collectively, they make like a super human.”
Guards Anthony Cowan, Melo Trimble and Kevin Huerter combined to score 52 points.
Cowan had 11 points, five assists and five rebounds.
The Terps have lost four of their last five.