Solve 3-(-2): Subtracting Negative Numbers on a Number Line

3−(−2)= 3-(-2)=

-7-7-7-6-6-6-5-5-5-4-4-4-3-3-3-2-2-2-1-1-1000111222333444555777666

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:05 Let's solve this problem.
00:08 Remember, negative times negative is always positive.
00:13 Now, open the parentheses.
00:21 The number is positive, it points right.
00:26 Moving right means going towards the positive side of the line.
00:29 So, we'll take 3 steps, then 2 more steps to the right.
00:35 And that's how we find the solution!

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

3−(−2)= 3-(-2)=

-7-7-7-6-6-6-5-5-5-4-4-4-3-3-3-2-2-2-1-1-1000111222333444555777666

2

Step-by-step solution

Let's remember the rule:

−(−x)=+ -(-x)=+

We'll write the exercise in the appropriate form:

3+(2)= 3+(2)=

We'll locate the number 3 on the number line, from which we'll move 2 steps to the right (since 2 is greater than zero):

-7-7-7-6-6-6-5-5-5-4-4-4-3-3-3-2-2-2-1-1-1000111222333444555777666

We can see that we've reached the number 5.

3

Final Answer

5 5

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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