the boy solves math equation written blackboard child does not know answer simple examples |
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navigate by keyword : add addition answer arithmetic back blackboard boy calculate calculation calculus chalk chalkboard child classroom concept correct dirty does easy educate education elementary equal equation examples formula four handwriting ideas know learn learning lesson math mathematical mathematics not number primary school sign simple solution solves study stupid sum symbol task teach text two white wipe write written |
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The boy solves the math equation 2 + 2 written on the blackboard. The child does not know the answer to simple examples. |
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