Stan has built a small solid using 11 one-centimetre cubes. He wants to add more 1-cm cubes to it to form a complete cube of edge 4 cm. How many MORE 1-cm cubes does he need?
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Worked Solution
Step 1: Volume of a cube of edge 4 cm = 4 × 4 × 4 = 64 cm³, so it needs 64 unit cubes in total.
Step 2: Stan already has 11 unit cubes.
Step 3: Number of MORE cubes needed = 64 − 11 = 53.
Answer: 53
Correct answer: 53
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