Teacher Ma wants to make a cuboid with a length of 4 cm, a height of 5 cm and a width of 3 cm and a cube with a side length of 8 cm with wire. How long wire does each school need?

(4+3+5)×4 = 48 cm

8× 12 = 96 cm

The sum of the sides of a cuboid is 56 cm, 8 cm long, 4 cm wide and how many cm high?

56÷4-8-4 = 2 cm

How much does the total area increase after cutting a cube with a side length of 8dm into two identical cuboids?

8×8×2= 128 square decimeter