A. using base 10 blocks explain how you would solve the following problem mickey has 252 marbles that he wants to distribute equally into 4 piles. how many marbles are in each pile? b. a teacher is going to do a project with the two fifth-grade classes in the school. one class has 21 students, and the other has 15 students. she has decided that all of these students will be divided into 12 groups and that each group will need 72 inches of string. she has a roll of string that is 882 inches long. does she have enough string, or will she need to buy more? c. do the following problem with pencil and paper what did you come up with? 3.4-8+2 order of operations defines a way of evaluating an expression that contains more than one operation, and no parenthesis. what is the order of operations? if you use the order of operations to do this problem does it change your answer? write the process of getting the answer using the order of operations in words, exchange your work and see if it is making sense to others. what happens if we write the problem in the following way? do we get another answer? 3. (4-8)+2 how many different answers can you get depending on different placements of parentheses, but not changing the numbers or operations or there placement from left to right?