“Kilojoules” (modified) Workout

50 Double Unders (100 singles)
25 Sit Ups
then:
5 Rds of (only did 3):
10 Deadlift 225/155lbs (did 8)
10 Box Jumps 20" (feet must land completely on box)
then:
25 Sit Ups
50 Double Unders (100 singles)