What is subtraction?
What is subtraction?
Naveen Hegde
Last Update pre godinu
Hello, students! Today, we are going to learn about subtraction. Subtraction is a basic math skill that helps us find out how many are left when we take away some from a group.
What is Subtraction?
Subtraction means taking away one number from another to find out what remains. The symbol we use for subtraction is "-".
Steps for Subtraction
1. **Understanding the Minus Sign (-):**
- The minus sign (-) means we are taking away numbers.
2. **Subtracting Small Numbers:**
- Let's start with small numbers to see how subtraction works.
**Example:**
- If you have 5 apples and you give away 2 apples, how many apples do you have left?
Let's subtract:
- 5 - 2 = 3
So, 5 apples minus 2 apples equals 3 apples.
3. **Using Objects to Subtract:**
- We can use objects like toys or fruits to understand subtraction better.
**Example:**
- If you have 4 toy cars and you give away 1 toy car, how many toy cars do you have left?
Let's subtract:
- 4 - 1 = 3
So, 4 toy cars minus 1 toy car equals 3 toy cars.
4. **Subtracting Numbers Directly:**
- Sometimes we just subtract the numbers directly without using objects.
**Example:**
- 6 - 2 = 4
- 8 - 3 = 5
Activities and Practice
1. **Using Fingers to Subtract:**
- Hold up 5 fingers. If you put down 2 fingers, how many fingers are still up?
- 5 - 2 = 3
2. **Subtracting with Toys:**
- Take 5 toy blocks. If you give away 2 blocks, how many blocks are left?
- 5 - 2 = 3
Worksheet:
Subtract the following numbers:
1. 3 - 1 = __
2. 5 - 2 = __
3. 4 - 3 = __