This is a rep-based workout. Perform each exercise in order without any rest. Maintain good form throughout. 

1. V-SITS - 20 REPS.
2. SIT-UPS - 20 REPS.
3. LEG RAISES - 20 REPS.
4. CRUNCHES - 20 REPS.
5. PLANK GET-UPS - 20 REPS.
6. DORSAL RAISES - 20 REPS.
7. REVERSE CRUNCH - 20 REPS.
8. HALF WIPERS - 20 REPS. 
9. MOUNTAIN CLIMBERS - 20 REPS.
10. BIRD DOGS - 20 REPS.