As with almost everything else in life that you want to master, it's about repetition.
By repeating basic math questions over and over again in super-fast succession you will:
- master the basics,
- improve your mathematical intuition,
- speed up understanding new concepts,
- build up a solid foundation for mathematical literacy,
- get a better feeling for what's going on around you overall.
Math is the way in which humans describe and think about the patterns of what's going on.