Music › Doubles Addition Facts mp3 Image 1 of 1 Doubles Addition Facts mp3 $0.99 Mp3 download for the Doubles Addition Facts song by Hopscotch Get notified by email when this product is in stock. Add To Cart Added! Mp3 download for the Doubles Addition Facts song by Hopscotch Reviews Reviewer Name Review Date Star Rating Description Posted on Etsy Product Show More You Might Also Like Quick View Days of the Week Song mp3 $0.99 Quick View The Vertebrates Song mp3 $0.99 Quick View Parts of Speech League mp3 $1.00 Quick View Write 3 (Three) - Number Formation Song mp3 $1.00 Quick View The Engineer Song mp3 $0.99