✔ 最佳答案
This book content about our daily life is not a mathematics which too understood, for example: 0 is the even number? Why said 0.9=1? This book has 103 topics, I thought the most interesting already topic is " Must spread out the rug in the staircase, how fast measures purchases the rug the length? ? " This topic content is said how we do use the fast method to measure the rug. You thought? Actually actually staircase bottom & High adds together, an answer is the rug length! ! Is not very simple? ? This book good suits slightly six to the junior middle school students, because this book has the key word which Chinese-English compares, is helpful us to know these words and expressions!