Treml, J. & Crombie, D.
This book is available for download with iBooks on your Mac or iOS device. Multi-touch books can be read with iBooks on your Mac or iOS device. Books with interactive features may work best on an iOS device. iBooks on your Mac requires OS X 10.9 or later.
Multiple Zombies is the second book in the undead mathematics series. Be sure to check out the first, In Parts, A Tale of Fractional Zombies to see what we can learn when zombies fall apart.
This book is meant for students learning multiplication of numbers 0-10. As such, it introduces the concept of multiplication as addition of sets and includes practice problems tied to the evolving story.