S1-SA1-1036
What is 6 - 4?
Grade Level:
Class 1
Maths, Computing, AI
Definition
What is it?
To find '6 - 4' means to subtract 4 from 6. Subtraction is taking away a certain number of items from a larger group. The answer tells us how many items are left.
Simple Example
Quick Example
Imagine you have 6 ladoos in a box. Your friend eats 4 of them. How many ladoos are left for you? You started with 6, and 4 were taken away, so 6 - 4 = 2 ladoos are left.
Worked Example
Step-by-Step
Let's find out '6 - 4' step-by-step:
1. Start with the first number, which is 6. You can think of having 6 items, like 6 cricket balls.
2. The minus sign (-) tells us to take away.
3. The second number is 4. This means we need to take away 4 cricket balls from the 6 we started with.
4. Count 6 items: Ball 1, Ball 2, Ball 3, Ball 4, Ball 5, Ball 6.
5. Now, take away 4 items: Remove Ball 1, Ball 2, Ball 3, Ball 4.
6. Count how many items are remaining. You will have Ball 5 and Ball 6 left.
7. There are 2 items remaining.
--- So, 6 - 4 = 2.
Why It Matters
Understanding basic subtraction like '6 - 4' is fundamental for Maths, Computing, and even AI. It's the building block for solving complex problems, from calculating changes in mobile data plans to writing simple code for game logic. Engineers and data scientists use these basic operations constantly.
Common Mistakes
MISTAKE: Subtracting the first number from the second (e.g., doing 4 - 6 instead of 6 - 4) | CORRECTION: Always subtract the second number from the first number given in the problem.
MISTAKE: Counting incorrectly when taking away items (e.g., miscounting the starting number or the number to be taken away) | CORRECTION: Double-check your initial count and the number you are subtracting. Use fingers or draw pictures if needed.
MISTAKE: Thinking that subtraction always results in a positive number | CORRECTION: While 6 - 4 gives a positive number, sometimes subtracting a larger number from a smaller one (like 4 - 6) results in a negative number, which you will learn about soon.
Practice Questions
Try It Yourself
QUESTION: You had 7 rupees and spent 3 rupees on a candy. How much money is left? | ANSWER: 4 rupees
QUESTION: There are 9 students in a group. If 5 students leave for another activity, how many students remain? | ANSWER: 4 students
QUESTION: A bus started with 10 passengers. At the first stop, 2 passengers got off. At the second stop, 1 more passenger got off. How many passengers are now on the bus? | ANSWER: 7 passengers
MCQ
Quick Quiz
What is the result of 8 - 3?
4
5
6
11
The Correct Answer Is:
B
When you take 3 away from 8, you are left with 5. Options A, C, and D are incorrect as they don't represent 8 minus 3.
Real World Connection
In the Real World
Imagine you are tracking scores in a gully cricket match. If Team A scored 6 runs in an over and then lost 4 runs due to a penalty, you'd use 6 - 4 to quickly find their current score of 2 runs. This basic math helps keep track of everything from your daily budget using UPI to managing inventory in a small shop.
Key Vocabulary
Key Terms
SUBTRACTION: Taking one number away from another | MINUS SIGN (-): The symbol used for subtraction | DIFFERENCE: The result of a subtraction problem | REMAINDER: What is left after taking away
What's Next
What to Learn Next
Great job understanding basic subtraction! Next, you can learn about subtracting larger numbers, subtraction with borrowing, and how subtraction relates to addition. These skills are essential for solving more complex math problems and real-world challenges.


