Self Check Exercise

Self Check Exercise

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?
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