TEPT1670
Trend Three-Corner Add/Subtract Flash Card Set
Educational - 1 / Set
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Teaches addition, subtraction and the relationship between them
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Ideal for groups or individuals at school, home or travel
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Includes 48 two-sided, 5-1/2" triangular cards in sturdy storage box
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Ideal for 1st-grade to 3rd-grade (ages 6 to 8)