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Contributor: Danielle Childers. Lesson ID: 10079
In this lesson, you get to create your own robot and use it to help with subtraction problems – and, if you are lucky, it will clean your room! Oh, you get to sing about honeybees, too! Have fun!
How would you like to have a robot to clean your room? It would put away all your toys and clothes, and even vacuum the floor! In this lesson, you get to create your own robot and use him or her to help with subtraction problems – and, if you are lucky, he or she will clean your room! Oh, you get to sing about honeybees, too!
In this lesson, you get to create your own robot and use him or her to help with subtraction problems – and, if you are lucky, he or she will clean your room!
Go to ABCYa.com to Make a Robot. Print the finished robot out so you can look at him or her. What are you going to name your robot?
You and 7 of your friends wanted the robot to clean your rooms, but it only got to 5 of them before it had to recharge. How many rooms does it have left?
We can use pictures to solve the problem.
There are 8 rooms in total, and the robot went to 5 of them, so we will cross those out. How many rooms are not crossed out? The answer in subtraction is called the difference, because we are comparing the difference of 8 rooms and 5 rooms.
What would this math sentence look like? This: 8 rooms - 5 rooms = 3 rooms, 8 - 5 = 3.
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