Question
PSLE
Tommy stacked 10 unit cubes and glued them together to form the solid shown. He painted the whole solid, including the base, blue. How many of the 10 cubes had exactly three of their faces painted blue?
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PSLE
Tommy stacked 10 unit cubes and glued them together to form the solid shown. He painted the whole solid, including the base, blue. How many of the 10 cubes had exactly three of their faces painted blue?