Solve 10 + (-12): Integer Addition on a Number Line

Solve the following problem using the number line below:

10+(−12)= 10+(-12)=

-4-4-4-2-2-2000222444666888101214

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:06 Let's solve this problem together.
00:09 Our first number is positive.
00:12 A positive number moves us to the right on the number line.
00:16 So, from zero, let's take ten steps to the right.
00:25 Now, let's look at a negative number.
00:29 A negative number moves us to the left on the number line.
00:34 We'll take twelve steps to the left.
00:43 And that's how we solve this! Great job!

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Solve the following problem using the number line below:

10+(−12)= 10+(-12)=

-4-4-4-2-2-2000222444666888101214

2

Step-by-step solution

We will locate the number 10 on the number line, then move 12 steps to the left from it (since minus 12 is less than zero):

-4-4-4-2-2-2000222444666888101214

We can see that we have reached the number minus 2.

3

Final Answer

−2 -2

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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