Decimal Calculator with Negatives

How to Use This Calculator

To use the decimal calculator with negatives:

1. Enter the first number in the "First number" field
2. Select the operation (+, -, ×, ÷)
3. Enter the second number in the "Second number" field
4. Click "Calculate" to see the result
5. Use "Reset" to clear all fields

The calculator will properly handle negative numbers in all operations, including:

• Adding negative numbers
• Subtracting negative numbers
• Multiplying negative numbers
• Dividing negative numbers

Formula Used

The calculator performs basic arithmetic operations with decimal numbers, including negatives. The formulas used are:

Where a and b are decimal numbers that may be positive or negative.

Worked Examples

Example 1: Adding Negative Numbers

Calculate 5.25 + (-3.75)

1. Enter 5.25 in the first field
2. Select "+" operation
3. Enter -3.75 in the second field
4. Click Calculate

Result: 1.50

Example 2: Subtracting Negative Numbers

Calculate 10.5 - (-2.5)

1. Enter 10.5 in the first field
2. Select "-" operation
3. Enter -2.5 in the second field
4. Click Calculate

Result: 13.00

Example 3: Multiplying Negative Numbers

Calculate -4.2 × 1.5

1. Enter -4.2 in the first field
2. Select "×" operation
3. Enter 1.5 in the second field
4. Click Calculate

Result: -6.30

Example 4: Dividing Negative Numbers

Calculate -15 ÷ 3

1. Enter -15 in the first field
2. Select "÷" operation
3. Enter 3 in the second field
4. Click Calculate

Result: -5.00