Start at the First Integer
The starting marker is placed on the first number in the expression.
Free Interactive Math Tool
Integer Addition and Subtraction on a Number Line
Start at the first integer, decide whether the operation moves left or right, make one-unit jumps, cross zero when needed, and check where you land.
Learn Integer Movement on a Number Line
Learn why positive movement goes right, negative movement goes left, and subtracting a negative reverses direction before beginning the interactive practice.
Read the Integer Number Line GuideHow It Works
Turn Integer Operations Into Movement
Every problem begins at the first integer. The sign and operation determine the direction, while the absolute value of the second integer determines the number of one-unit jumps.
Interpret the Operation
Decide whether adding or subtracting the second integer means moving left or right.
Make One-Unit Jumps
Use the movement buttons to build the solution one visible jump at a time.
Check the Landing Point
Compare your final position with the expression and receive immediate feedback.
Interactive Practice
Add and Subtract Integers
Correct
0
Problems
0
Streak
0
Integer Addition
Medium
−3
+
5
?
Start at −3. Use one-unit jumps to solve the problem.
Starting Point
−3
Current Position
−3
Jumps Made
0
5
Interactive Number Line
Move left or right one unit at a time.
Decide which direction represents +5.
Starting point
Current position
Correct endpoint
Great job!
You used the number line correctly.
−3 + 5 = 2
Start at −3 and move 5 spaces right to land on 2.
Remember
Integer Number Line Movement Rules
Add a Positive: Move Right
Adding a positive integer increases the value, so move to the right.
−3 + 5 = 2
Add a Negative: Move Left
Adding a negative integer decreases the value, so move to the left.
4 + (−6) = −2
Subtract a Positive: Move Left
Subtracting a positive integer decreases the value, so move to the left.
3 − 7 = −4
Subtract a Negative: Move Right
Subtracting a negative reverses the direction and increases the value.
−4 − (−3) = −1
Keep Learning
Understand Why Integer Signs Change Direction
Review positive and negative movement, addition and subtraction rules, crossing zero, subtracting negative integers, and worked number-line examples in the complete guide.
Read the Integer Number Line Guide