1. First you need to multiply 18 x 3 to find how many inches are on each side. Then use the perimeter formula to find the perimeter. (P=8s)

Answer: P=432 inches

2. To do this you multiply 7 ¼ by 2. Take the product and subtract it from 16. The difference is your answer.

Answer: 1 1/2 inches.

3. You draw a box with the measurements. Then write the area formula (A=LW) and solve it.

Answer: 1,050 square inches.

4. First you multiply 8x2. The product is the number of windows on one building. Multiply it by 2 to figure out how many windows are on both buildings.

Answer: 32 windows

5. To do this, you would multiply 13x19. Then take the product and multiply it by 9. Or just use the volume formula. (V=LxWxH)

Answer: 2,223 cubic inches