Hi Dear, 

NO! it is not necessary because in finance you should be good in your calculations like plus , minus , multiplications and division that's it. mathematics is totally different so mathematics is not necessary for a finance manager , as a finance manager you should have knowledge that how to manage the money of the organization nobody will give you job of find the value X. so don't worry!

i hope the information is helpful for you 

for more queries just contact with us 

thank you 

good luck

Finance is about money. Money is represented by numbers. Mathematics is about numbers.

Money is a surprisingly complicated subject, the more advanced you get. I dont mean to discourage you; I just think its fascinating that the relative value of currencies, which are a manmade invention, behaves so unpredictably that economics is studied empirically like a natural science instead of being a simple application of mathematics. The mathematics of finance can get pretty advanced.