Back to Understand that rewriting an expression in different forms can shed light on the problem — Problem 2 · Task Set 15

7.EE.A.2 Tutor Intake -- Equivalent Expressions and Percent Structure

This short check helps your tutor understand where to start. Answer each
question on your own. If you are not sure, give your best try -- every
response helps your tutor plan your sessions.

Grade 7·7 problems·~9 min·Common Core Math - Grade 7·standard·7-ee-a-2

Work through problems with immediate feedback

Concepts

The expression $1.05a$ is the single-multiplier form of a 5% increase
on $a$ . Which situation would most naturally use the expanded form
$a + 0.05a$ instead?

Explaining to someone why the total is the original amount plus a 5% addition

Quickly computing the final total for many different values of $a$ using a calculator

Writing the shortest possible expression for a spreadsheet formula

Comparing two different 5% increases without knowing either starting value