Borrowing subtraction, also called abdication subtraction. It means that when two numbers are subtracted and the number of digits to be subtracted is not enough, the previous number is borrowed as ten, which is equivalent to adding 10 to calculate.

Generally speaking, when children don't know how to borrow subtraction, we advise parents not to rush to expand to a larger number.

Because increasing the difficulty can't improve children's math level, it will make children more confused and tired of learning.

Parents are advised to start subtraction from below 20, and try to let children accept and understand it slowly.

The following five methods are of great help to children's borrowing subtraction, and can also appropriately reduce the burden and anxiety of parents.

Counting stick is a common teaching aid in mathematics teaching, which is usually used for digital counting.

For the subtraction within 20, you can use a counting stick and use food to help children understand.

According to the requirements of the topic, count the corresponding number of counting bars, remove or add a certain number of counting bars, and then count to get the result.

If children find the counting stick too boring, they can also use their imagination to put numbers or their favorite shapes on it. The process is interesting and interactive. The key is to make children fall in love with this math learning method, which is very beneficial.

Physical objects are our first choice for teaching children addition and subtraction. After the physical phase, we will move on to writing and drawing-drawing a circle.

When children don't need to count points one by one with their fingers in the face of addition and subtraction, drawing a circle formula is an abstract and concrete method. Subtract two numbers, you can draw the cycle number corresponding to the minuend, then cross out the minuend part, and then count the rest, and you will get the result.

The advantage of circle subtraction is that children can also use it in exams, because there are no tools to use in exams, so drawing a circle is also an important method.