# Subtraction within 10 or 20

Subtraction within 10 or 20

A Simple Method for Teaching Subtraction

Subtraction is a fundamental math skill that is important for students to learn. Teaching subtraction can be a challenge, but with the right approach, it can be made easier. This method focuses on teaching subtraction within 10 or 20. It is a simple and effective way to help students understand the concept of subtraction.

Examples:

1. 8 – 5 = 3
2. 10 – 6 = 4
3. 15 – 8 = 7
4. 20 – 9 = 11

Create a Table of 10 Exercises:

1. 8 – 4 =
2. 10 – 5 =
3. 12 – 6 =
4. 15 – 7 =
5. 18 – 8 =
6. 20 – 9 =
7. 10 – 4 =
8. 15 – 6 =
9. 18 – 7 =
10. 20 – 8 =

1. 8 – 4 = 4
2. 10 – 5 = 5
3. 12 – 6 = 6
4. 15 – 7 = 8
5. 18 – 8 = 10
6. 20 – 9 = 11
7. 10 – 4 = 6
8. 15 – 6 = 9
9. 18 – 7 = 11
10. 20 – 8 = 12

5 Multiple Choice Questions:

1. What is the answer to 8 – 5?
A. 3
B. 4
C. 5
D. 6

2. What is the answer to 10 – 6?
A. 3
B. 4
C. 5
D. 6

3. What is the answer to 15 – 8?
A. 6
B. 7
C. 8
D. 9

4. What is the answer to 20 – 9?
A. 10
B. 11
C. 12
D. 13

5. What is the answer to 18 – 8?
A. 8
B. 9
C. 10
D. 11

Key:

1. A
2. B
3. B
4. B
5. C

Conclusion:

Subtraction is an important math skill for students to learn. This method of teaching subtraction within 10 or 20 is a simple and effective way to help students understand the concept. With practice and repetition, students can become proficient in subtraction and be able to apply it to more complex problems.

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