Standard Calculator

Color Coding

• Blue: numbers, the decimal point, plus/minus sign, constants, and memory recall.
• Orange: operations involving two numbers, such as addition and division.
• Rosy: functions involving one number, such as percent and square root.
• Red: clear and delete actions.
• Green: the result or equals action.
• Black: calculator and tape actions, such as Print.
• Gray: formatting controls, fractions, and scientific notation.

Keyboard

Use the numeric keypad to enter numbers. The keyboard Enter key performs the same result action as =. Use to remove the last digit and Delete to clear the current entry. The +, -, *, and / keys enter arithmetic operations.

Tape and Tape Buttons

Calculations are saved on the tape. Select an earlier number or operator to edit it, then use = to recalculate the tape and update the result.

Clearing Buttons

• removes the last digit from the current entry.
• C clears the current entry.
• AC clears the calculator and tape and resets active functions.
• MC clears memory.

Memory Buttons

• MR recalls the stored value into the current entry.
• M+ adds the current value to memory.
• M- subtracts the current value from memory.
• MC resets memory to zero.

Function Buttons

% applies a percentage calculation. √ calculates the square root of the current value.

Printing

opens a dialog where you can add a title, description, and footnote before printing the tape. Only the prepared tape document is printed, not the keypad or page controls.

Fraction Bar /

Use / between the numerator and denominator.

Fraction Space ␣

Use ␣ between a whole number and its fraction.

DEC / FRA

DEC shows decimal results. FRA shows fraction results. You can switch modes after a calculation.

Mixed / Improper

Mixed-fraction mode uses compact notation such as 1 4/5. Improper-fraction mode shows the same value as 9/5.

Examples

• 3 / 4 = 3/4
• 5 ␣ 3 / 4 = 5 3/4
• 1/2 with FRA selected shows 1/2.
• 1/2 with DEC selected shows 0.5.
• 9/5 with mixed-fraction mode 1 4/5 selected shows 1 4/5.
• 1 4/5 with improper-fraction mode 9/5 selected shows 9/5.
• 2/3 + 4/5 = 1 7/15