DOUBLE VALUE VERTICAL FLASH CARDS
$8.99
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Great for teaching the relationship of +/- and x/÷ (Example3+1=4 on one side, 4-1+3 on the reverse). Each box contains 90 classroom-size flash cards, 6-1/4" x 3-1/4"Includes:1 Box of Addition and Subtraction Cards, Vertical
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