Cross Sum Volume Four: Enhance Addition Skills - Softcover

Inhaltsangabe

Every puzzle is unique, and so is its level of challenge. To help you gauge the complexity of each, we use a star rating system. One star: For those who are just getting started - gentle and welcoming. Just complete the addition left to right. Two stars - For the seasoned mathematician who is ready for a robust challenge. No matter the level of your math skills, this volume promises an atmosphere of mental stimulation and challenge. Try not to peek, but if you must, all solutions are located at the end of this volume.

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