Solve (-8)+(+12): Adding Integers with Different Signs

Solve the following equation:

(−8)+(+12)= ? (-8)+(+12)=\text{ ?}

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Solve
00:04 Find point (-8) on the axis
00:10 Move to the right (positive) direction on the axis
00:15 And this is the solution to the question

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Solve the following equation:

(−8)+(+12)= ? (-8)+(+12)=\text{ ?}

2

Step-by-step solution

First, let's remember the rule:

+(+x)=+x +(+x)=+x

Now let's write the exercise in the following way:

−8+12= -8+12=

We'll draw a number line and place minus 8 on it, then move 12 steps to the right:

-1-1-1-4-4-4-3-3-3-2-2-2-5-5-5-6-6-6-8-8-8-7-7-7444000111222333

Therefore:

−8+12=4 -8+12=4

3

Final Answer

4 4

Practice Quiz

Test your knowledge with interactive questions

a is negative number.

b is negative number.

What is the sum of a+b?

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