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Great for teaching the relationship of +/- and x/ƒ· (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:
Color: | Blue, Purple, White |
Size: | 20, 24 |
Material: | 100% Polyester |