Hannah had a grid of squares that has 12 rows with 15 squares in each row. she colors 5 rows of 8 squares in the middle of the grid blue. she colors the rest of the squares red. how many squares dose hannah color red
Hannah has a grid with 12 x 15 (180) squares. she colors 5 x 8 (40) squares blue. we subtract the 40 blue squares from the 180 squares and we get 140 red squares.