The series in this section on balance transfer unknowns into intuitive geometry
Before doing this exercise, the child should do through the exercises addressing specific issues on the expression: a mystery, two unknowns to familiarize and master the basic method for handling problem and apply the skills when working with expression.
With the completely new approach to the mystery, the series in this section on balance transfer unknowns into intuitive geometry, lively self help children maximize their thinking ability.
Through each exercise, children can develop the ability to build and perfect their knowledge of mathematics through solving specific problems.
Last updated on 2016年07月20日
此版本包含小幅错误修复和常规改进。请更新至最新版本，以获得更佳体验。
