The teacher selected a mystery number to break apart. The only hint she gave was that one part of the whole could be 3. What is the mystery number the teacher selected and what could be the two parts? Explain your thinking.
The teacher selected a mystery number to break apart. The only hint she gave was that one part of the whole could be 3. What is the mystery number the teacher selected and what could be the two parts? Explain your thinking.
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