Scientific Calculator
Evaluate mathematical expressions with order of operations, powers, and functions.
Scientific Calculator
Evaluate mathematical expressions with order of operations, powers, and functions.
Real-World Examples
Order of operations
Evaluate 2 + 2 × 3
8
Using exponents
Evaluate 2^10 + 5
1029
Parentheses grouping
Evaluate (3 + 4) × (5 - 2)
21
Common Mistakes to Avoid
Ignoring order of operations
Fix: Multiplication and division happen before addition and subtraction. 2 + 3 × 4 is 14, not 20. Use parentheses to force a different order.
Mismatched parentheses
Fix: Every opening parenthesis must have a matching closing one. Count them carefully in long expressions.
Using × instead of * for multiplication
Fix: This calculator uses * for multiplication and / for division. The × and ÷ symbols are not valid operators.