A surprise awaits the annual opening of Douglas and Son's Toy Store on Christmas Eve, and if the Math Inspectors can't unravel the mystery, the surprise will ruin the holiday. Aligned to Common Core Standards and correlated to state standards. Chapter Books is an imprint of Spotlight, a division of ABDO. Stanley, Charlotte, Gertie, and Felix are just your typical twelve-year-old kids. They love hanging out after school. They love burgers and milkshakes. And they love math. And if there's one thing they love more than math, it's solving mysteries! Thankfully their hometown has plenty of mystery and quite a few secrets. Aligned to Common Core Standards and correlated to state standards. Chapter Books is an imprint of Spotlight, a division of ABDO

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