Checkbook Calculator

How to Use the Checkbook Calculator

1. Enter an Operation:

   • Choose the desired operation from the “Operation” dropdown menu:
     • Auto: Automatically adds the entered amount to the total.
     • Auto Decimal: Automatically adds the entered amount with decimal precision.
     • + (Add): Adds the entered amount to the total.
     • − (Subtract): Subtracts the entered amount from the total.
     • × (Multiply): Multiplies the total by the entered amount.
     • ÷ (Divide): Divides the total by the entered amount.

2. Enter the Value:

   • Input the amount you wish to add, subtract, multiply, or divide from the total in the “Entry” field.

3. Calculate:

   • Click the “Calculate” button to perform the operation. The result will update the total displayed at the top of the calculator.

4. Reset:

   • To start over, click the “Reset” button. This will clear the total and the entry field, allowing you to begin a new calculation.

Example

Imagine you want to balance your checkbook by adding a deposit and subtracting a withdrawal:

1. Step 1: Choose + (Add) from the operation dropdown.
2. Step 2: Enter $500 in the “Entry” field.
3. Step 3: Click Calculate. The total should now show $500.00.
4. Step 4: Now choose − (Subtract) from the operation dropdown.
5. Step 5: Enter $100 in the “Entry” field.
6. Step 6: Click Calculate. The total should now show $400.00.

Formulas

The calculator uses basic arithmetic operations to update the total:

• Addition: Total = Total + Operand
• Subtraction: Total = Total – Operand
• Multiplication: Total = Total * Operand
• Division: Total = Total ÷ Operand