Translate verbal phrases and short contexts into algebraic expressions.
Translate comparison contexts into expressions
Problem
Ben is \(b~\text{years}\) old, and Sara is \(5~\text{years}\) younger. Write an expression for Sara's age.
Big Picture
What this problem is really about
Use Ben’s age as the reference quantity because b represents him. Sara being five years younger means her age is five below that reference, so begin with b and subtract the age difference. A quick numerical example can check that the expression gives Sara the smaller age.
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.
