Join Sir Cumference and the gang for more wordplay, puns, and problem solving in the clever math adventure that introduces readers to the concepts of area and perimeters.

When young Per visits her uncle Sir Cumference and his family, she learns how to play the game, "Inners and Edges." After she finds a clue linking the game to the mysterious castle on the island of Immeter, she must figure out how to find the perimeter and area of a circle to unlock the island's secret.

Fans will love cracking the code with Per and the gang in this new installment of the Sir Cumference series that makes math fun and accessible for all.


加入Sir Cumference和他們的夥伴，在聰明的數學冒險中提供更多的文字遊戲，雙關語和問題解決方案，向讀者介紹區域和周邊的概念。

當年輕的Per拜訪她的叔叔Sir Cumference和他的家人時，她學會談論如何玩遊戲，“Inners and Edges”。 在她找到一條線索將游戲與Immeter島上的神秘城堡聯繫起來之後，她必須弄清楚如何找到一個圓圈的周長和區域來解開島上的秘密。

粉絲們喜歡在Sir Cumference系列的新版本中使用Per和其夥伴來破解代碼，這使得數學變得有趣並且可供所有人使用。

（文字整理/徐琍沂&劉世明）