老师对这道数学题进行了重新表述，使学生更容易理解。

The teacher gave a ___reformulation of the math problem to help students understand it better.

这种饮料的新配方减少了糖分含量。

The new ___reformulation of this drink reduces the sugar content.

这个数学问题的解决需要对表达式进行重新表述。

Solving this math problem requires a ___reformulation of the expression.