A student uses square tiles measuring 1 centimeter on each side to find the area of the square. Her reasoning is shown. I covered the top and bottom edges of the square with 5 tiles each.
Then I covered the left and right edges with 3 tiles each. I added up all the tiles I used to get a total area of 20 square centimeters. 5+5+5+5=20
Identify the two errors in the student’s reasoning and describe how to correctly use square tiles to find the area of the square. Give the correct area of the square.
1 point
1
Question 2
2.
Write a multiplication sentence that models how to find the area of the square shown. Give the area of the square.