数学开放性题是相对于传统的封闭题而言的，其特征或是题目的条件不充分，或是结论不唯一，等等。如此，开放性题的解答策略也往往是多种多样的。一般的解答方法有观察、试验、分析、类比、归纳、猜测、想象、综合、验证或证明等。 　　例一个整数 (用■表示 )与一个小数 (用▲ Open question of mathematics is relative to the traditional closed questions, the characteristics or the conditions of the problem is not sufficient, or the conclusion is not the only, and so on. So, the answer strategy of open questions is often varied. The general solution to the method of observation, test, analysis, analogy, induction, guess, imagine, synthesis, verification or proof. An example of an integer (with ■ said) and a decimal (with ▲