standard_description: Understand that rewriting an expression in different forms in a problem context can shed light on the problem and how the quantities in it are related. For example, a + 0.05a = 1.05a means that “increase by 5%” is the same as “multiply by 1.05.”
problem_activity: Problem 3
Pre-unit
Find the value of each sum or difference.
\(374 + 455\)
\(259 - 186\)


aligns: no