Basic Calculator

Published on: January 1, 2023
Answer: Free

This Basic Calculator helps you do quick arithmetic calculations including addition, subtraction, multiplication, division, decimals, percentages, square roots, brackets, and negative numbers. It follows the standard order of operations, so mixed expressions are worked out in the correct sequence. It is useful for everyday sums, checking simple work, and getting fast answers without opening a full scientific calculator. You can type into the input box or use the on-screen keyboard, then press solve to see the answer.

Operations supported

  1. Addition using \(+\)
  2. Subtraction using \(-\)
  3. Multiplication using \(\times\)
  4. Division using \(\div\)
  5. Decimal calculations such as \(2.5 + 1.75 = 4.25\)
  6. Square roots using \(\sqrt{9} = 3\)
  7. Brackets, including nested ones, such as \((2 + 3) \times 4 = 20\)
  8. Order of operations, so \(2 + 3 \times 4 = 14\)
  9. Adding or taking off a percentage, such as \(100 + 10\% = 110\)
  10. Percent of a number, such as \(200 \times 10\% = 20\)
  11. Negative numbers such as \(-8 + 3 = -5\)
  12. Memory keys \(\text{MC}\), \(\text{MR}\), \(\text{M}+\), and \(\text{M}-\)