Calculator Buttons

The most basic calculator buttons include the numerical keys (0 to 9), addition (+), subtraction (), multiplication (x), and division (÷) buttons. These are used for simple arithmetic calculations.

The equals (=) button is used to calculate the result of the entered mathematical expression or operation.

The ‘C’ button is used to clear the calculator’s input field. It allows you to completely erase your current work.

The ‘AC’ button stands for All Clear, it clears both the working and the final answer from the calculator’s memory.

The ‘CE’ button (Clear Entry) is used to erase the most recently entered number or operation. It’s useful if you make a mistake during entry.

The decimal point (.) button is used to enter numbers less than one or to specify a decimal place in a number.

The percentage (%) button is used to calculate percentages. It is helpful in various calculations, such as finding the percentage increase or decrease between two numbers.

The square root (√) button provides the square root of a number. Be aware that this operation cannot be done on negative numbers.

The ‘Ans’ button remembers the last answer given by the calculator. It is useful if you want to use the result of one calculation in the subsequent calculation.

Some calculators have a ‘π’ button, which inputs the value of Pi (approximately 3.14159), useful in calculations involving circles and angles.

The power buttons (^ or exp) are used to raise a number to a certain power. You would first input the base number, then the power button, and finally the exponent.

Trigonometry buttons (sin, cos, tan and their inverses) are used when you are dealing with triangle calculations, oscillations, waves, etc.

The memory buttons (M+, M, MR, MC) allow you to save, retrieve, add to, or subtract from numbers stored in the calculator’s memory.

The ‘log’ and ‘ln’ buttons allow for logarithmic calculations. ‘log’ stands for logarithm base 10 and ‘ln’ stands for natural logarithm (logarithm base e).
Remember that intelligent calculator use is a fundamental skill for mathematical work, and in this assessment. Practice using one extensively beforehand to become familiar with its layout and functions.