In support of point 1, point 2 should be "learn more maths". Use of the abbreviated, antiquated adjective 'mathematic' as a plural is a peculiarity of American English and is probably not something you want to emulate. Have fun :)
In most dialects of English (notably British English), the short form of the subject is "maths". In North American English, it is "math". In all dialects, the full form is "mathematics". In all dialects, both the short and full forms are singular and accept singular verbs. For example, "mathematics IS the study of numbers and patterns".
If you like to tailor to your audience, you may consider using "maths" for a British audience and "math" for an American audience.