# Critique

## Opening

# Critique

Review your work on the Self Check problem and think about these questions.

- Can you use a number line to help you understand the problem?
- Does choosing a value for the first number in the equation help you figure out what the second number could be?
- Do you think writing an equation is impossible? If so, explain why.
- Does writing a subtraction equation as an equivalent addition equation help you figure out what numbers could work in the equation?