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Problem 1 Julia collected aluminum cans for two days. On Friday morning she collected 30 cans and on Friday night she collected 35 cans. On Saturday morning, Julia collected 35 cans and on Saturday night she collected 30 cans. Did she collect more on Friday than on Saturday?
1. What operation will you use to answer the question? Write your equation.
2. What property of real numbers justify your equation?
3. How did you know that your answer is correct?
4. How can the knowledge of real numbers help us solve problems in daily life?​