Sit-ups, dancing if you like, dancing can lose weight. Pay attention to the abdomen at ordinary times.

The best way to lose weight and strengthen the stomach is sit-ups and exercise twice a day (once in the morning and once in the evening).

Three groups at a time, 30 sit-ups in each group. Stick to it for a month and you will see the effect.

Of course, exercise should be coordinated with other sports, and at the same time, we should eat reasonably.

If my answer doesn't help you, please keep asking questions.