Basic Calculator
Free online basic arithmetic calculator with addition, subtraction, multiplication, division, percentages, and memory recall for fast daily calculation.
Basic Desk Calculator
Standard 4-function office calculator with paper tape audit history, memory registers (M+/M-/MR/MC), clipboard expression paste, and keyboard support.
Calculation Tape
Tape is empty. Perform calculations to record steps.
What is a Basic Calculator?
A basic calculator performs standard arithmetic operations: addition (+), subtraction (−), multiplication (×), and division (÷).
It is the foundational computational tool used worldwide in homes, schools, and offices for quick numerical problem-solving.
Formula & Step-by-Step Calculation
Follows standard PEMDAS / BODMAS mathematical order of operations.
Worked Step-by-Step Examples
Calculate 145 × 12
Common Real-World & Academic Use Cases
- ✓ Daily budget tallies
- ✓ Grocery receipt calculations
- ✓ Quick school arithmetic verification
How to Use the Basic Calculator
Input Numbers
Click numbers or type on keyboard.
Select Operator
Choose +, -, ×, or ÷.
Press Equals
Get the exact numerical answer.
Frequently Asked Questions
Q: What does PEMDAS stand for?
Parentheses, Exponents, Multiplication and Division, Addition and Subtraction.