请看苏教版小学数学六年级上册一道练习题:芳芳把154个同样的小正方体堆成了三堆。第一堆比第三堆少24个,第二堆比第三堆少14个。三堆各有多少个小正方体?这是总复习中一道配合复习“解决问题策略——假设法”的练习题。大多数学生的思路是把第一堆和第二堆都替换成第三堆,于是第一堆要加上24个,第二堆要加上14个,这样三堆就变得同样多, Look at the Supiao version of primary school mathematics sixth grade on a book exercises: Fang Fang 154 same small cubes piled into three heaps. The first stack is 24 less than the third stack, and the second stack is 14 less than the third stack. How many small cubes each of three piles? This is a total review with a review of the “problem-solving strategy - hypothesis Act” exercises. Most students idea is to replace the first pile and the second pile are the third pile, so the first pile to add 24, the second pile to add 14, so three piles become as much,