Sign Up
School Account Sign Up
Lesson ID: 10079
What if you had your own robot? What would it look like? What would it do? It could help you clean and do your chores. It could even help you subtract!
Imagine a robot rolling into your room with flashing lights, silly beeps, and a tiny vacuum arm. It zooms across the floor, picks up toys, stacks books, and puts dirty socks in the laundry basket. Very helpful. Slightly bossy. Probably wearing a bow tie.
Now, imagine the robot starts with 8 toys on the floor. It picks up 3 toys and puts them away.
You can use a picture to find out! Draw 8 toys. Then, cross out the 3 toys the robot picked up. Count how many toys are left.
That is subtraction!
In this lesson, you will use pictures to subtract and find out how many are left.
You and 7 of your friends ask your robot to clean your rooms, but it only had time to clean 5 of them before it had to recharge.
You can use pictures to solve the problem.
There are 8 rooms in total, and the robot cleaned 5 of them, so you can cross those out.
There are 3 rooms not crossed off, so 3 is the answer!
The answer in subtraction is called the difference because you are comparing the difference of 8 rooms and 5 rooms.
Great work!
You bring your robot to school and put it in charge of handing out the snack to your class of 15 students. Your crazy robot accidentally gives cookies to the 3 classroom hamsters!
Use the picture to help you set up and solve the problem.
Yes! There are 12 cookies left for snack.
Keep up the great work in the Got It? section!
Supplies
Suggested Reading
Additional Resources
FAVORITE
Like