The Secret of the Forgotten Door. Adventure Workbook
Three classmates through a door forgotten by everyone find themselves in another world. There is a terrifying twisted labyrinth, ferocious hungry trolls, an evil sorceress, and all strangers await an inevitable sad end. How will the kids return? You won't...
believe it, but mathematics will save them - the ability to quickly solve tricky problems. And readers can expect not only thrilling adventures but also their own portion of tasks, as well as tips on how to learn to calculate quickly. The book is intended for children from 6 years old.
Three classmates through a door forgotten by everyone find themselves in another world. There is a terrifying twisted labyrinth, ferocious hungry trolls, an evil sorceress, and all strangers await an inevitable sad end. How will the kids return? You won't believe it, but mathematics will save them - the ability to quickly solve tricky problems. And readers can expect not only thrilling adventures but also their own portion of tasks, as well as tips on how to learn to calculate quickly. The book is intended for children from 6 years old.
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