📚 Education & Exams
12 ONLINE TOOLS
📐
Geometric calculations
Volume area of circle/rectangle/triangle/sphere
➗
Score Calculation
Fractional addition, subtraction, multiplication, division and reduction
％
Calculation of percentage
Percentage Increase/Decrease, Proportion, Difference
⚗️
Molar Mass Calculation
Calculate molar mass based on chemical formula
🧪
Periodic table
Query elements and periodic tables (built-in data)
🎓
GPA Score Calculation
GPA weighted by credits (4.0 system)
🧮
Univariate quadratic equation
Solve ax ² + bx + c = 0
🔟
Prime Tools
Prime number judgment, factorization, interval prime number list
➗
Maximum common divisor/Least common multiple
Calculate multiple integer GCDs vs. LCMs
✏️
Oral Problem Generation
Generate elementary school verbal calculation exercises that can be printed
✖️
multiplication rhyme table
99 multiplication table, supports 9 × 9/12 × 12
📜
Idiomatic Dragon Connection
Random idioms, or play dragon with friends