Original Title: MATHEMATICS: NUMBERS, ALGEBRA, AND GRAPHS

Copyright © 2020 Brown Bear Books Ltd

Devised and produced by Brown Bear Books Ltd,

Unit 1/D, Leroy House, 436 Essex Road, London

N1 3QP, United Kingdom

Chinese Simplified Character rights arranged through Media Solutions Ltd Tokyo Japan (info@mediasolutions.jp)

本书中文简体版专有出版权授予电子工业出版社。未经许可，不得以任何方式复制或抄袭本书的任何部分。

版权贸易合同登记号 图字：01-2021-5260