CCLS - Math: 7.EE.2

Expressions And Equations
Use Properties Of Operations To Generate Equivalent Expressions.
State Standard:
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.”