Answer

No, it is not “against Jain Dharma” to be weak in maths or to know very little about it.

Jain Dharma does not say that every person must be good at mathematics. What matters spiritually is how one lives: with non-violence, truthfulness, self-control, humility, compassion, and effort toward right knowledge and right conduct.

Explanation

In Jain Dharma, ignorance itself is not treated as a sin in the ordinary sense. But remaining careless, arrogant, or unwilling to learn what is necessary for one’s duties can become spiritually harmful.

So if maths is needed for your studies, work, responsibilities, or honest living, then making sincere effort to learn it is good. But struggling with maths does not make you a bad Jain or spiritually wrong.

Spiritual Understanding

Jain Dharma values:

• Vinay — humility
• Purusharth — sincere effort
• Samyag Jnan — right knowledge
• Aparigraha — not being attached to ego or comparison

If you do not know maths, the Jain approach would be: accept it honestly, do not feel inferior, and learn patiently if it is useful or necessary.

Takeaway

Not knowing maths is not against Jain Dharma. But Jain Dharma encourages humility, sincere effort, and learning what helps you live responsibly and truthfully.