Mary Cron Books

Monster Math Super
Monster Math Super

By Martha Cheney, Mary Cron

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Penny Puzzlers Bk 2
Penny Puzzlers Bk 2

By Mary Cron

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Penny Puzzlers Bk 3
Penny Puzzlers Bk 3

By Mary Cron

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Penny Puzzlers Bk 4
Penny Puzzlers Bk 4

By Mary Cron

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Good night, sleep tight--
Good night, sleep tight--

By Mary Herd Tull

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Elizabeth Anne feels much better after she tells her parents about her nightmare, in which goofy and mischievous monsters tear up her room, but her vivid description leaves her parents wide awake.

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More Phonics Fun
More Phonics Fun

By Mary Cron

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What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.

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