# Checkbook Calculator

## Checkbook Calculator

Total: 0.00

### 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.
• − (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