What is a Different Number?

S0-SA1-0364

Grade Level:

Pre-School – Class 2

All domains without exception

Definition

What is it?

A 'different number' simply means a number that is not the same as another number or numbers in a given group. When we compare numbers, if they are not equal, then they are different. It helps us identify unique values.

Simple Example

Quick Example

Imagine you and your friend both got marks in a Maths test. You got 85 marks and your friend got 90 marks. Here, 85 and 90 are different numbers because they are not the same value. Your marks are different from your friend's marks.

Worked Example

Step-by-Step

Let's find the different number in the following group: 5, 8, 5, 9, 5.

Step 1: Look at the first number, which is 5.
---Step 2: Compare it with the next number, 8. Is 8 the same as 5? No, 8 is different from 5.
---Step 3: Compare 5 with the next number, 5. Is 5 the same as 5? Yes, they are the same.
---Step 4: Compare 5 with the next number, 9. Is 9 the same as 5? No, 9 is different from 5.
---Step 5: Compare 5 with the last number, 5. Is 5 the same as 5? Yes, they are the same.
---Step 6: In this group, the numbers that are not 5 are 8 and 9. If we are looking for numbers that are unique or stand out from the most common number (5), then 8 and 9 are the different numbers. If we are just looking for any number that is not identical to another specific number, then 8 is different from 5, and 9 is different from 5.
---Answer: The numbers 8 and 9 are different from 5 in this group.

Why It Matters

Understanding different numbers is fundamental for comparing things and making choices in daily life. It's crucial in fields like data analysis for finding unique entries, in computer programming for sorting information, and even in finance for comparing prices. Data scientists and business analysts use this concept daily.

Common Mistakes

MISTAKE: Thinking 'different' means only bigger or smaller | CORRECTION: 'Different' just means 'not the same'. It can be bigger, smaller, or even a different type of number (like a fraction versus a whole number).

MISTAKE: Confusing 'different' with 'odd' or 'even' | CORRECTION: 'Different' is about comparison between two numbers. 'Odd' or 'even' describes a single number's property (divisible by 2 or not). A number can be different from another and both can be even.

MISTAKE: Not considering zero as a 'different' number | CORRECTION: Zero is a number, and it can be different from any non-zero number. For example, 0 is different from 5.

Practice Questions

Try It Yourself

QUESTION: Are the number of wheels on an auto-rickshaw (3) and the number of wheels on a car (4) different numbers? | ANSWER: Yes, 3 and 4 are different numbers.

QUESTION: In the list of mobile data packs: 1GB, 2GB, 1GB, 3GB. Which numbers represent different data amounts from the most common pack? | ANSWER: 2GB and 3GB are different from 1GB.

QUESTION: Your mom bought 2 kg of onions, 3 kg of potatoes, and 2 kg of tomatoes. List all the different quantities (in kg) she bought. | ANSWER: The different quantities are 2 kg and 3 kg.

MCQ

Quick Quiz

Which of these pairs shows two different numbers?

5 and 5

10 and 10

7 and 9

20 and 20

The Correct Answer Is:

Options A, B, and D show pairs where both numbers are exactly the same. Only option C, '7 and 9', shows two numbers that are not equal to each other, making them different numbers.

Real World Connection

In the Real World

When you use a shopping app like Flipkart or Amazon, you often compare prices of the same item from different sellers. If one seller lists a phone for Rs 15,000 and another for Rs 15,500, these are different numbers, helping you decide where to buy. Similarly, cricket commentators constantly compare scores and statistics, highlighting different performances.

Key Vocabulary

Key Terms

COMPARE: to check how two or more things are similar or unsimilar | UNIQUE: being the only one of its kind; distinct | VALUE: the numerical amount or worth of something | IDENTICAL: exactly the same

What's Next

What to Learn Next

Now that you understand what different numbers are, you can move on to 'Comparing Numbers'. This next concept will teach you how to use symbols like greater than (>) and less than (<) to show which different number is bigger or smaller, which is super useful!