Trend Three-Corner Add/Subtract Flash Card Set - Educational - 1 / Set
Reference: TEPT1670_R427
Condition: New product
Manufacturer: TREND Enterprises Inc.
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Self-checking cards teach addition, subtraction and the relationship between them. Ideal for groups or individuals at school, home or travel. Set includes 48 two-sided, 5-1/2" triangular cards that focus on numbers through 12 and a sturdy storage box. Dur