(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