Level 2 PSLE
Mark glued 15 cubes of side 1 cm to form the solid shown.
  1. Mark painted the whole solid, including the base. What was the total painted area?
  2. Mark added some cubes of side 1 cm to the solid to form a cuboid 3 cm by 5 cm by 5 cm. How many cubes did he add?
2 m