Adding Negative Numbers Calculator

Adding Negative Numbers
First number

Second number

Sum =

Adding Negative Numbers Calculator is a free online tool that displays the sum of two negative numbers. BYJU’S online adding negative numbers calculator tool performs the calculation faster and it displays the sum in a fraction of seconds.

How to Use the Adding Negative Numbers Calculator? 

The procedure to use the adding negative numbers calculator is as follows:

Step 1: Enter the two negative numbers in the input field

Step 2: Now click the button “Solve” to get the sum

Step 3: Finally, the sum of two negative numbers will be displayed in the output field

What is Meant by Adding Negative Numbers?

In mathematics, addition is one of the arithmetic operations. The addition is the process of adding two or more numbers together. The result of the addition process is called the sum and the numbers which are added together are called the addends. The addition of two numbers will follow the below rules.

  • Addition of two positive numbers: Add two numbers and put “+” sign
  • Addition of two negative numbers: Add two numbers and put “-” sign
  • Addition of one positive number and one negative number: subtract two numbers and put the sign of the largest number.

Check:  Addition and Subtraction of Integers

Solved Examples on Adding Negative Numbers

Example 1: 

Find the sum of -6 and -10


Given two numbers are -6 and -10

Sum = (-6) + (-10)

Sum = -6 – 10

Sum = -16

Hence, the sum of -6 and -10 is -16

Example 2:

Add the numbers 18 and -6


Given numbers: 18 and -6

Sum = 18 + (-6)

Sum = 18 – 6

Sum = 12

 Hence, the addition of 18 and -6 is 12. 

Frequently Asked Questions on Adding Negative Numbers


Write down the rules for adding numbers.

Positive Number + Positive Number = Add (Put “+” sign)
Negative Number + Negative Number = Add (Put “-” Sign)
Positive Number + Negative Number = Subtract (Put the sign of largest number)


What is the sum of 15 and 20?

The sum of 15 and 20 is 35. Because the two given numbers are positive. Hence, we need to add two numbers with a positive sign


Find the sum of -7 and 10

The sum of -7 and 10 is 3. Here, -7 is a negative number and 10 is a positive number. So we need to subtract the given two numbers. So we get 3, and also the sign of the largest number (10) is positive. Hence, the sum is +3.


What is the sum of 1 and ½?

The sum of 1 and ½ is 3/2. Because 1 is a positive integer and ½ is a fraction.
= 1 +(½)
= (2+1)/2
= 3/2


Find the sum of 0.7 and 3/2.

Given two numbers are 0.7 and 3/2
Here, 0.7 is a decimal number and 3/2 is a fraction.
To add these two numbers, convert the fractional number into a decimal number.
So, 3/2 becomes 1.5
Therefore, sum = 0.7 +1.5 = 2.2
Hence, the sum of 0.7 and 3/2 is 2.2

Disclaimer: This calculator development is in progress some of the inputs might not work, Sorry for the inconvenience.


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