2. Adding hands: First, open your hands, the left hand indicates an addend, and the right hand indicates an addend. For example, if you hold out three fingers in your left hand and four fingers in your right hand, ask your child to count three on the left and four on the right, and get 3+4, 1234567, and 3+4 = 7.
3. Use some tools: such as wooden sticks, some things that children are interested in and some graphics to drive children's interest in learning mathematics.