Making Change

Zuri and Freddie are going on a camping trip, but, need to get some supplies first. While shopping, they might need to make change. : "Making Change" Many people often do not have exact amounts of money when paying. When this happens they receive change. Change can refer to coins and dollar bills. Making change is how many coins and dollar bills you get back when you pay too much. So, it is the DIFFERENCE of the money you PAY with and the cost of the item. In this video we will use a number line to help us subtract to find the difference. Zuri and Freddie need to buy a tent first. The tent that they want costs twenty-six dollars. Freddie and Zuri give the cashier thirty dollars, how much change will they get back? We can start by subtracting the amount their tent cost from how much money they gave the cashier. The first step is to create an equation for what we need to solve. Freddie and Zuri gave the cashier thirty dollars for the twenty-six dollar tent. So, we'll subtract thirty minus twenty-six to create our equation. Next, we can put the larger number on the RIGHT side and skip-count back the value of the second number. We'll put thirty on the right side and count back twenty-six. Then, we can skip-count backward by tens twice. After that, we count back by ones (...) six times. Finally, the number that we land on is how much change we will receive. We skip-counted backward and landed on the number four. Zuri and Freddie will receive four dollars in change. Next they are planning to buy A LOT of marshmallows. They grab forty-five dollars worth of marshmallows. If Zuri and Freddie give the cashier sixty dollars, how much change will they receive? First we need to create an equation, how can we set it up? We can set it up as sixty minus forty-five, since Zuri gave sixty and the price is forty-five. Next, we can put the larger number on the RIGHT side and skip-count backward the value of the second number. We need to skip count backward forty-five. There are different ways to skip-count backward. To create the least amount of jumps here, we can skip-count backward FOUR tens and ONE five. If we skip-count backward four tens and one five, what number will we land on? (...) We land on the number fifteen. Zuri and Freddie will receive fifteen dollars back. They also need to buy graham crackers and chocolate! They decide to buy eighty-three dollars worth of the other s'mores supplies. If Zuri and Freddie give the cashier one hundred dollars, how much change will they receive back? Remember, start by creating an equation, what equation did you create? (...) We can create the equation one hundred dollars minus eighty-three. Next, put the larger number on the RIGHT side of the number line. Then, skip-count backward the value of the second number. If we skip-count backward eighty-three, what number will we land on? We land on the number seventeen. Zuri and Freddie received seventeen dollars back. Now Zuri and Freddie need flashlights! They decide to get color changing flashlights that cost one hundred twenty-two dollars. If Zuri gives the cashier one hundred fifty dollars, how much will she receive back? Zuri will get twenty-eight dollars back. Let's summarize. Remember when making change... Start by creating an equation. Next, put the larger number on the RIGHT side of the number line. Then, skip-count backward the amount of the second number. Finally, the number that we land on is how much change we will receive back. Let's check in with Zuri and Freddie. : "Do you have my pillow?" : "I thought you packed the pillows..." : "We can just use the extra jumbo marshmallows!"