1. Observe the vertical position and find out the rule. For example, some numbers in the vertical form are repeated, or the positions of some numbers are fixed. These rules can help us fill in vertical forms more quickly.
2. Choose an appropriate calculation method. For example, some vertical forms can be solved by addition and subtraction, while others need multiplication and division. We need to choose the appropriate calculation method according to the specific situation.
3. Pay attention to carry and abdication. When filling in the vertical form, you need to pay attention to the situation of carry and abdication. If you don't pay attention to these questions, you will get the wrong answer.
4. Do more exercise. Only through constant practice can we master the skills and methods of vertical form filling.