GHZ state vs Space Math Flashcards

This app represents the quantum circuit for Greenberger-Horne-Zeilinger state. You can find GHZ states for various initial states.

Space Math makes practicing basic math fun and easy for kids ages 6–10. Choose a math mode — Addition, Subtraction, Multiplication, or Division — pick a session length of 5, 10, or 15 minutes, and start solving! Problems are presented one at a time in a large, easy-to-read flashcard format. Kids type their answers, get instant feedback with fun celebration animations for correct answers, and can retry or skip tricky problems without frustration. A countdown timer keeps sessions short and focused, making it easy to fit math practice into busy days — whether at home or on the go. When time's up, a friendly results summary shows how the session went with encouraging words. Features: Four math modes: Addition, Subtraction, Multiplication, and Division Timed sessions: 5, 10, or 15 minutes Age-appropriate problems (numbers 0–12) Instant feedback with celebration animations Retry incorrect answers or skip and move on Session results with accuracy tracking Progress saved on-device Works fully offline — no internet required No ads, no in-app purchases, no accounts needed Designed to be simple, colorful, and encouraging — Space Math helps kids build confidence with math one problem at a time.