ZeroDay Dev vs Math Dash

Learn to break things—before attackers do. ZeroDay Dev teaches secure coding and blockchain security through 4,000+ hands-on challenges. Learn from 120+ real-world exploits: Beanstalk, Indexed Finance, bZx, VeilCash, Sigma.Money, Bybit, and more. Each exploit is linked to verified incident records so you learn from actual on-chain events, not hypotheticals. Practice — Build exploit intuition without reading docs. Tap vulnerable lines, drag tokens into code, get instant feedback. Filter by domain (Exploits, Solidity, Rust, DeFi, Solana) or difficulty. Exercises — Full code challenges with reference solutions. Deeper dives when you're ready. Exam — Prepare for real security assessments. Timed tests across domains with performance tracking. Memory-match decks for opcodes, EIPs, and security terms. Deep Dive Hub — Curated learning tracks for Web2, Web3, Rust, ZK Proofs, and Trading. Recommended tracks driven by your weak areas. Build your own from bookmarks or missed questions. Streaks & XP — Stay consistent and level up. Daily streaks, badges, and progression keep you coming back. Offline-first — Learn on the subway, no Wi‑Fi needed. All content lives on your device. No account required—start immediately. Covers reentrancy, oracle manipulation, flash loans, proxy races, ZK trusted setup, and more. Rust, Solidity, DeFi, Solana & cybersecurity.

Math Dash turns multiplication, addition, and spelling practice into a fast-paced, feel-good running game for 1st and 2nd grade. Players guide a running character, collect correct answers, and grow taller with every success, building a clear, visual sense of progress. Improve skills by chasing answers on the move, racing the clock, and earning stars for accuracy and speed. The star rating system gently pushes players to improve without ever punishing mistakes. Five Game Modes Number Dash includes five focused modes that build core math and language skills through short, replayable rounds. Addition mode reinforces adding numbers from plus one through plus five, ideal for early practice with small sums. Subtraction mode covers subtracting one through five, helping players understand taking away and thinking in reverse. Multiplication mode focuses on times two through times five, laying a strong foundation for early times tables. Division mode builds confidence dividing by two through five, supporting a deeper understanding of how numbers relate. Word Spell mode switches to literacy, where players collect letters in the correct order to spell complete words. Each math mode lets you choose a specific number to practice, such as only plus three or times four. This makes it easy to match what is being learned in class, reviewed at home, or introduced for the first time. Three Difficulty Levels Number Dash grows with the player: Easy gives 60 seconds and slower-moving targets, ideal for beginners who are still thinking through each answer. Medium offers 45 seconds with a quicker pace, perfect for players building speed and confidence. Hard provides 30 seconds and fast-moving targets, challenging players who are ready to react quickly and think on their feet. These options allow you to start where you feel comfortable and step up when ready, turning improvement into a natural part of the game. Thoughtful Design Number Dash is built to encourage, not frustrate. Bright, friendly visuals and a clean layout make it simple to focus on the task. A wrong answer causes a brief wobble and then the game continues, with no loss of points, progress, or time. Players are free to try again and learn through repetition. The star rating system awards one, two, or three stars based on how many correct answers are collected and how quickly they are found. This simple feedback loop helps players set their own goals, such as moving from one star to two, or filling the screen with three-star runs. Key Features Practice addition, subtraction, multiplication, division, and spelling in one app. Target specific skills by choosing the exact number or word type to focus on. Three difficulty levels let the game adjust to each player’s ability. Positive reinforcement with no penalties for mistakes supports a growth mindset. Colorful themes, including Meadow, Beach, and Space, keep practice visually engaging. Randomized answer patterns ensure every round feels new, even when repeating the same skill. Landscape gameplay is optimized for comfortable play on phones and tablets. Number Dash makes daily practice with numbers and words something to look forward to. Whether at home, in the classroom, or on the go, it turns essential skills into quick, rewarding bursts of play that build confidence over time.