A10
30 Air Squats
30 Lunges
30 Abmat Sit-Ups
After every round, reduce the number of reps by 3
A20
50 Air Squats
50 Lunges
50 Abmat Sit-Ups
50 Ground to Jump and Touch
Lower complexity certainly does not mean easier; strive to do the common things uncommonly well, and see how much speed you can bring to a high volume workout.
AStrong
Push Press 5×10
Tall Box Jumps 5×5
AHIIT
6 Air Squats
6 Lunges
6 Abmat Sit-Ups