江苏中考数学的特点
江苏省的中考数学试题通常以基础知识和能力立意为主，注重考查学生的逻辑思维能力、运算求解能力、空间想象能力、分析问题与解决问题的能力等。试题通常包括选择题、填空题、解答题等多种题型，旨在全面评估学生的数学素养。
2013年江苏中考数学真题解析
选择题
选择题通常包括基础概念理解、运算技巧、图形性质等。2013年的选择题难度适中，覆盖了数学中的基础知识。以下是一例解析：
题目：在直角坐标系中，点A的坐标为(2,3)，点B的坐标为(5,7)。点C在第二象限，且AC=BC。
解析：首先，根据勾股定理求出AB的长度。接着，根据AC=BC，我们可以推断出点C的坐标。因为点C在第二象限，所以其x坐标小于0，y坐标大于0。
填空题
填空题考查学生对基础知识的掌握程度和数学表达的能力。2013年的填空题难度适中，以下是一例解析：
题目：若方程 (x^2 - 2(k+1)x + k^2 + k - 1 = 0) 的两根之积为 (a)，则 (a = ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________