1. The first thing children need to remember is that 10 plus a few equals 10.

For example:10+1=1,10+2= 12 until 9, and the second one to remember is1+/kloc-0. 8+8 =16, 9+9 =18,10+10 = 20. After remembering this, it is not difficult for children to learn addition and subtraction beyond 20.

2. Remember large numbers and add and subtract decimals.

Addition: remember large numbers in your mind, count up decimals, for example, 4+2= remember 4 in your mind, count up two numbers, 5 and 6, and then get the result. Subtraction: Remember large numbers in your mind, and count down decimals, such as 6-3= remember 6, count down 3, 5, 4, 3, and then get the result: 6-3=3 parents.

Children's Mathematics Enlightenment Method

If children are taught difficult arithmetic from the beginning, they will find it hard to accept it. Parents can integrate their lives into their children's math learning, such as going to the supermarket to buy apples, and let the children choose and count themselves. After returning home, parents can ask their children to wash two apples and ask them how many apples each has left after eating.

In this way, letting children unconsciously contact and learn mathematics in life can improve their interest in mathematics and help them understand the importance of mathematics in life.