Maths is not a compulsory subject for pursuing CA it just require basic knowledge of maths which you can prepare on your own with proper study plan and strategy.

But I will suggest only if you are confident then go for this course as its duration is long ,it can become difficult.
But if you have the courage and confidence then you can definitely pass this exam and can become CA.

Basic knowledge of Maths is what is required. Your concepts should be clear. You should have understanding of debits/credits, transactions, finances and accounts etc. 

Computers handle most of the math - you need to be able to logically analyze the data to see if it makes sense. A good understanding of Excel would be more useful than doing math in your head.

If your concepts are not clear at elementary level then you can face difficulty.

So choice is your.

Good Luck.