6×6×6=2 16 (square centimeter)
Then find a cube with a length of 6 cm. How many cubes with a length of 2 cm are there?
(6×6×6)÷(2×2×2)=27 (pieces)
Or 6÷2=3, 3×3×3=27 (piece)
Find the surface area of these 27 cubes.
Current surface area: 2× 2× 6× 27 = 648.
Supplement: 648-2 16 = 432 cm2.
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