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Primary school synchronous refining test: how to do the first big question, the second question and the third question on the fifth grade mathematics page 17 of People's Education Press?
(1) Question 1: 6*3*3=54 (Because it has become four cubes, the length, width and height of this cube are all 3, and there are six more faces, so there are 54 square centimeters more).

(2) The second question: It is also 6*3*3=54, because each cube is 3 in length, width and height, and * * * has six faces.

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