![Problema Resuelto [Spanish] B0BHTRXRK9 Book Cover](https://i.thriftbooks.com/api/imagehandler/l/7F057E9F7CC5675E3FE565727F0E556F9858BF63.jpeg)
Two mice want to build a library for their mom's impressive book collection. To get the supplies they need, they must cross a bridge guarded by a friendly dragon who loves math problems. Will they be able to answer his questions correctly? This cross-curricular Spanish book helps...