1, picture 1: There are five ducklings, and two of them fly away. Q: How many ducklings are left?

Answer: 5-2=3.

Figure 2: There are five apples on the table, and the children have two. Q: How many apples are left on the table?

Answer: 5-2=3.

3. Figure 3: There are 7 birds, and 4 of them fly away. Q: How many birds are left?

Answer: 7-4=3.

Figure 4: There are six balloons in the bucket, and the children took three. Q: How many balloons are left in the bucket?

Answer: 6-3=3.

5. Figure 5: There are 9 bears, of which 5 are playing and 4 are sleeping. Q: How many bears are sleeping?

Answer: 9-5=4.

Children look at the picture and write the corresponding digital subtraction, which mainly includes:

Understand the concept of subtraction.

Subtraction is a basic concept in mathematics, which means subtracting a part from the total, and the rest is called Pi Zhaoxun subtraction. Children need to understand the concept of subtraction in order to perform subtraction correctly.

2. Recognize and memorize numbers

Before subtraction, young guessers need to be able to recognize and remember numbers. This means that they should be able to know the name and order of each number and subtract smaller numbers from larger numbers.

Step 3 Use visual AIDS

In order to help children understand the concept of subtraction, teachers can use visual AIDS, such as demonstrating with fingers or objects. This can help children better understand the meaning of subtraction.

4. Practice this subtraction.

When children understand the concept of subtraction and can recognize and remember numbers, they need to practice subtraction. This can be achieved through various workbooks or online resources. In practice, we should start with simple topics, such as 2- 1, 3-2, etc. And gradually increase the difficulty, such as 4-3, 5-4, etc.

5. Write the answer correctly

When practicing subtraction, children need to learn to write answers correctly. They should know how to write the result of subtraction in the right place and how to mark the symbols of addition and subtraction.