Based on the users' reviews, here are three cons and three pros of the Math 3 Sec - Think Fast app: **Cons:** 1. "Too many ads, disrupting the flow of the game, frustrating experience." (15 words) 2. "Limited levels and exercises, gets repetitive and boring quickly." (15 words) 3. "Some math problems are too easy or too hard, lacks a good balance." (15 words) **Pros:** 1. "Improves mental math skills and speed, fun and engaging way to practice." (15 words) 2. "Helps build confidence and fluency in solving math problems under pressure." (15 words) 3. "User-friendly interface, easy to navigate and understand, great for all ages." (15 words) Please note that these are general conclusions based on the users' reviews and may not reflect the full range of opinions or experiences with the app.