In this lesson, your child will learn adding numbers with carry over (regrouping). Walk-through with your child the steps for carry over as shown in the lesson. The first two examples in the lesson break down the steps in details. After that, it gradually reduces the help provided so that your child can try to do it herself. There is no harm in making mistakes in the beginning. Any new procedure takes a bit of practice to get used to. So encourage your child to keep trying until the carry over procedure becomes second nature to her. Happy adding!