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For grades 1-3
Set of 10 dry-erase mats
Practice addition and subtraction!!
Each mat features an addition fact family triangle on one side and a number bond on the other. Set of 10. Mats are 9" x 12", made of durable flexible plastic. For use with dry-erase markers.
Didax Educational Resources Write-On Wipe-Off Fact Family Triangle Mats: Addition Math Resource