What is A Number that is Less?

S0-SA1-0925

Grade Level:

Pre-School – Class 2

All domains without exception

Definition

What is it?

A number that is less means a number that has a smaller value when compared to another number. It tells us that one quantity is smaller than another. For example, if you have 3 ladoos and your friend has 5 ladoos, then 3 is less than 5.

Simple Example

Quick Example

Imagine you are playing a cricket match. If your team scored 120 runs and the opposing team scored 115 runs, then 115 is a number that is less than 120. This means the opposing team scored fewer runs.

Worked Example

Step-by-Step

Let's find a number that is less than 7.

1. Start with the number 7.
2. Think of numbers that come before 7 when you count: 1, 2, 3, 4, 5, 6.
3. Pick any one of these numbers. Let's pick 4.
4. Compare 4 and 7. Since 4 comes before 7 on the number line, 4 is smaller than 7.
5. So, 4 is a number that is less than 7.

Answer: 4 (or any number like 1, 2, 3, 5, 6)

Why It Matters

Understanding 'less than' is super important in daily life and in many subjects. It helps you compare quantities in Science, understand budgets in Economics, and even calculate discounts while shopping. Engineers and data scientists constantly compare numbers to make decisions.

Common Mistakes

MISTAKE: Thinking that a number with more digits is always greater. For example, thinking 9 is less than 100 because 9 has fewer digits. | CORRECTION: Always compare the actual value of the numbers, not just the number of digits. 9 is much smaller than 100.

MISTAKE: Confusing 'less than' with 'greater than'. For example, saying 10 is less than 5. | CORRECTION: Remember that 'less than' means smaller in value. 5 is less than 10, not the other way around.

MISTAKE: Only thinking of whole numbers. Forgetting that fractions or decimals can also be 'less than' other numbers. | CORRECTION: 'Less than' applies to all types of numbers. For example, 0.5 is less than 1, and 1/4 is less than 1/2.

Practice Questions

Try It Yourself

QUESTION: Which number is less: 15 or 12? | ANSWER: 12

QUESTION: Your mom bought 1 kg of potatoes and your neighbour bought 750 grams of potatoes. Who bought a less quantity of potatoes? (Hint: 1 kg = 1000 grams) | ANSWER: Your neighbour bought less potatoes (750 grams is less than 1000 grams).

QUESTION: Write three different numbers that are less than 20 but greater than 10. | ANSWER: Any three numbers from 11, 12, 13, 14, 15, 16, 17, 18, 19. For example, 11, 15, 19.

MCQ

Quick Quiz

Which of the following numbers is less than 45?

The Correct Answer Is:

39 is the only number among the options that has a smaller value than 45. Options A, B, and D are either greater than or equal to 45.

Real World Connection

In the Real World

When you check your mobile data usage, you often see how much data you've used (e.g., 1.5 GB) and how much is remaining (e.g., 0.5 GB). You know that 0.5 GB is less than 1.5 GB, meaning you have less data left than what you've already consumed. This helps you decide if you need to recharge.

Key Vocabulary

Key Terms

VALUE: The amount or quantity represented by a number. | COMPARE: To examine two or more things to find similarities or differences. | QUANTITY: An amount or number of something. | NUMBER LINE: A straight line on which numbers are marked at equal intervals.

What's Next

What to Learn Next

Now that you understand 'less than', you're ready to learn about 'greater than' and 'equal to'. These concepts build on comparing numbers and are essential for understanding inequalities and ordering numbers in Math!