standard_description: Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.
problem_activity: Naja brought $20 to the corner store.
She spent $3.49 on candy.
She spent $5.79 on a Jamaican beef patty.
How much money did Naja have left?


aligns: no