Math in the third grade of primary school: if a family eats apples, if everyone eats 1, there is still1; If everyone eats two, there are still two less. Do you know how many people are there in this family? There is another question about this question: How many apples are there? I usually draw a line segment to analyze this kind of Olympic math problems, as shown in the figure:

Children in grade three haven't learned equations yet, so I usually draw a line segment for him to analyze:

1. number of people: the number of apples eaten by each person 1 is of course equal to the number of people. You can tell the number of people by knowing how many apples * * * ate; Look at the picture, we know that after everyone ate 1, there were 1 apples left and two apples that everyone ate were missing, which is exactly the total number of apples that everyone got, which should be equal to the number of people. So the number of people: 1+2=3 (people)

2. Apples: 3+ 1=4 (pieces)

3. Each person can take 2 tests: 2*3-2=4 (each).