-Sets of objects are used to solve problems that involve groups where each group has the same number of objects. For example: Joe has 5 friends, and each of his friends has 5 marbles. How many marbles does Joe’s friends have? To solve this problem, you can draw it out as 5 different groups and each group has five marbles each. Answer: Joe’s friends have 25 marbles all together.
-Number lines can be used to solve multiplication problems by skip hopping to the number you are multiplying and then the number of hops is the other side of the problem. Once you hop the number of times then the last number is