1 - 1 = 0

2 - 1 = 1

3 - 1 = 2

4 - 1 = 3

5 - 1 = 4

6 - 1 = 5

7 - 1 = 6

8 - 1 = 7

9 - 1 = 8

10 - 1 = 9

2 - 2 = 0

3 - 2 = 1

4 - 2 = 2

5 - 2 = 3

6 - 2 = 4

7 - 2 = 5

8 - 2 = 6

9 - 2 = 7

10 - 2 = 8

3 - 3 = 0

4 - 3 = 1

5 - 3 = 2

6 - 3 = 3

7 - 3 = 4

8 - 3 = 5

9 - 3 = 6

10 - 3 = 7

4 - 4 = 0

5 - 4 = 1

6 - 4 = 2

7 - 4 = 3

8 - 4 = 4

9 - 4 = 5

10 - 4 = 6

5 - 5 = 0

6 - 5 = 1

7 - 5 = 2

8 - 5 = 3

9 - 5 = 4

10 - 5 = 5

6 - 6 = 0

7 - 6 = 1

8 - 6 = 2

9 - 6 = 3

10 - 6 = 4

7 - 7 = 0

8 - 7 = 1

9 - 7 = 2

10 - 7 = 3

8 - 8 = 0

9 - 8 = 1

10 - 8 = 2

9 - 9 = 0

10 - 9 = 1

10 - 10 = 0

Function of formula table

1, easy to remember and lay a good foundation: the formula table provides a simple and easy-to-remember learning method of subtraction within ten. It transforms subtraction into simple sentences or patterns, making it easy for children to remember the results of each subtraction formula. Subtraction within ten is the basis of mathematics learning, which lays the foundation for more complicated subtraction operations in the future. Through the study of formula table, children can be familiar with the characteristics and laws of subtraction operation, and gradually cultivate the concept and skills of digital subtraction.

2. Cultivate calculation ability and enhance self-confidence: Repeated practice of formula table can improve the calculation speed and accuracy of children. When children skillfully remember the results of the subtraction formula in the formula table, they can solve the subtraction problem within ten more quickly and improve the calculation efficiency. Through the study and practice of formula table, children can achieve results in a short time and improve their ability to solve subtraction problems. This can enhance their confidence in mathematics, stimulate their interest in learning, and lay the foundation for more complicated mathematics learning in the future.