Add and subtract signed numbers and explain the meaning of the sign changes.
Translate number-line movement into signed operations
Problem
Start at \(-4\) and move \(7~\text{units}\) right. Write the signed operation, and calculate the ending point.
Big Picture
What this problem is really about
Keep the starting location separate from the direction of movement. Begin at negative four, and translate seven units to the right as adding a positive change, regardless of the start’s sign. Count enough units to reach zero, then use the remaining units to locate the endpoint and write the complete signed equation.
Inside Gozunta
Turn the preview into practice.
More than a preview
Gozunta lets you study this problem—and more than 10,000 others.
Create targeted learning sessions, use hints, check your answer, read the walkthrough, watch the video, print the work, and track your progress.
