What is the Successor of a Number?

S3-SA4-0284

Grade Level:

Class 6

AI/ML, Data Science, Physics, Economics, Cryptography, Computer Science, Engineering

Definition

What is it?

The successor of a number is simply the number that comes immediately after it when you count. You find the successor by adding 1 to the original number. Think of it as the 'next' number in line.

Simple Example

Quick Example

Imagine your favourite cricket team scored 150 runs in a match. What would be the successor of 150 runs? It would be 150 + 1, which is 151 runs. So, 151 is the successor of 150.

Worked Example

Step-by-Step

Let's find the successor of the number 49.

Step 1: Understand what 'successor' means. It means the number that comes right after.
---
Step 2: To find the number that comes right after, we need to add 1 to our original number.
---
Step 3: Our original number is 49.
---
Step 4: Add 1 to 49: 49 + 1.
---
Step 5: Perform the addition. 49 + 1 = 50.
---
Answer: The successor of 49 is 50.

Why It Matters

Understanding successors is fundamental to how computers count and organize data, which is crucial in Computer Science and Data Science. Even in fields like Cryptography, numbers are often manipulated sequentially. This basic idea helps build complex systems, from managing your mobile data to planning rocket launches at ISRO.

Common Mistakes

MISTAKE: Subtracting 1 instead of adding 1. For example, saying 9 is the successor of 10. | CORRECTION: Always add 1 to the number to find its successor. The successor of 10 is 10 + 1 = 11.

MISTAKE: Confusing successor with predecessor. For example, saying 19 is the successor of 20. | CORRECTION: The successor is the 'next' number (bigger by 1). The predecessor is the 'previous' number (smaller by 1). The successor of 20 is 21.

MISTAKE: Not adding 1 correctly, especially with numbers ending in 9. For example, saying 79 is the successor of 78. | CORRECTION: Double-check your addition. The successor of 79 is 79 + 1 = 80, not 78.

Practice Questions

Try It Yourself

QUESTION: What is the successor of the number 7? | ANSWER: 8

QUESTION: Find the successor of 99. | ANSWER: 100

QUESTION: If a shop sold 245 idlis today, what number represents the successor of idlis sold? | ANSWER: 246

MCQ

Quick Quiz

Which of the following is the successor of 35?

The Correct Answer Is:

The successor of a number is found by adding 1 to it. So, 35 + 1 = 36. Options A, C, and D are not found by adding 1 to 35.

Real World Connection

In the Real World

When you book train tickets online, the system often assigns 'PNR numbers' sequentially. If your PNR is 1234567, the next person might get 1234568. This is a real-world application of successors, helping organize bookings and ensure each one is unique.

Key Vocabulary

Key Terms

SUCCESSOR: The number that comes immediately after another number | ADDITION: The process of combining two or more numbers | NUMBER LINE: A visual representation of numbers in order | PREDECESSOR: The number that comes immediately before another number

What's Next

What to Learn Next

Great job learning about successors! Now that you understand how to find the number that comes after, you're ready to learn about 'Predecessors of a Number'. It's the opposite concept and just as easy to grasp!