Calculate Volume (l x w x h)

140 square cm.

When I find area, I find the number of unit squares I can tile an object with. The units that I use to measure are unit squares.

Jason is not correct. The area is 50 square inches, not 50 inches.

Marguerite is planning a garden. It is a rectangle with length 5 meters and width 3 meters. What is the area of her garden?

The area is 37 square cm. I multiplied 3 times 4 to find that the area of the first rectangle is 12 square cm. I multiplied 5 times 5 to find that the area of the square is 25 cm. I added the two areas together to find the area of the figure.

The volume is 30 cubic feet. I multiplied 3×2×5.

When I find volume, I find the number of unit cubes required to fill the object. The units that I use to measure are unit cubes.

Mio is not correct. The volume of the box is 120 cubic cm. I think Mio added the measurements instead of multiplying, and used units instead of cubic units.

Roberto has a fish tank in the shape of a rectangular prism that measures 2 feet by 3 feet by 2 feet. What is the volume of the fish tank?

One rectangular prism has a volume of 7 × 2 × 3 = 42 cubic cm. The other rectangular prism has a volume of 4 × 6 × 2 = 48 cubic cm. I added 42 cubic cm and 48 cubic cm and found that the volume of the figure is 90 cubic cm.