In view of this situation, mothers can take the following measures to deal with the problem of children asking for toys:

1. Make rules for buying toys: Make some rules for buying toys with children. For example, children can choose a toy every week or month, or they can buy toys after completing some specific tasks or performing well. This helps to cultivate children's patience and financial management ability.

2. Guide children to understand the value of money: By telling children about the relationship between money and hard work needed to buy toys, let children understand that toys can't be obtained casually. Children can take part in some housework activities to get pocket money, so that they will cherish their money more and think about whether it is worth buying toys.

3. Pay attention to cultivating children's hobbies: Children's desire to buy toys is often related to their lack of other hobbies. Mothers can encourage their children to take part in some beneficial activities, such as sports, music, art or handicrafts, to help them find their own interests, thus reducing their dependence on toys.

4. Advocate frugality awareness: encourage children to save money and help them understand the importance of careful calculation. You can make a savings plan with your children and save some pocket money regularly every day or week to accumulate more expensive toys or other more meaningful items.

5. Give moderate rewards: When children behave well, study hard or pass some exams, giving moderate rewards may be a way of encouragement and affirmation. This can be extra pocket money, or you can buy a toy that you particularly like to encourage your child's positive performance. At the same time, you should be careful not to over-reward, so as not to strengthen your child's desire to buy.

In short, through communication and guidance, mothers should help children understand the value of money, cultivate a correct concept of consumption, and guide children to find other more meaningful activities and interests to fill the emptiness of buying toys.