A lot is 50 m by 32 m. A house 27 m by 9 m is built on the lot. How much area is left​ over?

To find the area left over, we first need to calculate the area of the lot and the area of the house.

The area of the lot is determined by multiplying its length by its width:
Area of the lot = Length × Width = 50 m × 32 m = 1600 m²

Similarly, the area of the house is found by multiplying its length by its width:
Area of the house = Length × Width = 27 m × 9 m = 243 m²

To find the area left over, we subtract the area of the house from the area of the lot:
Area left over = Area of the lot - Area of the house = 1600 m² - 243 m² = 1357 m²

Therefore, there is 1357 square meters of area left over.