Back to Identify when two expressions are equivalent — Problem 3 · Task Set 29

6.EE.A.4 Tutor Intake -- Identifying Equivalent Expressions

This short check helps your tutor see where to start. Work each problem on
your own, without a calculator unless a problem says otherwise. If you are
not sure, give your best try — every answer helps your tutor plan your
first few sessions.

Grade 6·10 problems·~11 min·Common Core Math - Grade 6·standard·6-ee-a-4

Work through problems with immediate feedback

Concepts

Why should you test at least two different values before deciding
two expressions might be equivalent, instead of stopping after
one match?

Testing only one value is against the rules, even if it works.

Two values are needed because expressions always have exactly two terms.

A single match could be a coincidence; a mismatch at a second value would disprove equivalence.

One test is enough, but two values make the answer look more official.