It is not just the activities that children do that help them learn, but the questions you and your children both ask and the things you point out that get them thinking mathematically. We have tried to explain some of the reasons for activities so that you can better answer your children's questions and ask them your own questions. There is growing evidence from research that preschool children can solve simple problems and love to do so. Children learn best when they find answers for themselves and in their own way. You don't need to spend a lot of money on flash cards or workbooks.
Children learn when the problems arise out of their everyday lives.
Don't be afraid to ask your children to figure out the answers to simple problems during the day. Give them time to think about the answer, but don't push them. Don't worry if they can't figure it out or don't solve it the way you think they should. You are encouraging your children's thinking and imagination. However, don't let them get frustrated.