What is 4 × 11?

S1-SA1-0686

Grade Level:

Class 3

Maths, Computing, AI

Definition

What is it?

4 × 11 means adding the number 11 to itself 4 times. It is a basic multiplication problem where we find the product of 4 and 11.

Simple Example

Quick Example

Imagine you buy 4 packets of 'Parle-G' biscuits. If each packet costs ₹11, how much money do you need in total? You need to calculate 4 × ₹11.

Worked Example

Step-by-Step

Let's find the answer to 4 × 11:
1. We can think of 4 × 11 as adding 11 four times.
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2. So, it's 11 + 11 + 11 + 11.
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3. First, 11 + 11 = 22.
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4. Next, 22 + 11 = 33.
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5. Finally, 33 + 11 = 44.
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6. Alternatively, you can multiply directly: 4 multiplied by 1 is 4 (for the tens place), and 4 multiplied by 1 is 4 (for the ones place).
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7. Combining them gives 44.
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Answer: 4 × 11 = 44.

Why It Matters

Understanding multiplication like 4 × 11 is crucial for many fields. In Computing, it helps in writing code for calculations and loops. In AI, it's used in algorithms for processing data and making decisions. Future careers in data science, software development, or even game design use these basic math skills constantly!

Common Mistakes

MISTAKE: Adding 4 and 11 instead of multiplying (getting 15). | CORRECTION: Remember that '×' means multiplication, which is repeated addition. So, it's 11 + 11 + 11 + 11, not 4 + 11.

MISTAKE: Confusing multiplication by 10 with multiplication by 11 (getting 40). | CORRECTION: When multiplying by 11, remember it's one more group of the number than multiplying by 10. So, 4 × 11 = (4 × 10) + (4 × 1) = 40 + 4 = 44.

MISTAKE: Forgetting the times table for 4 or 11 and guessing. | CORRECTION: Practice your multiplication tables regularly. Knowing them by heart makes these calculations much faster and accurate.

Practice Questions

Try It Yourself

QUESTION: What is 5 × 11? | ANSWER: 55

QUESTION: If a auto-rickshaw charges ₹11 per kilometer, how much would it cost for a 7-kilometer ride? | ANSWER: ₹77

QUESTION: You have 4 friends, and each friend gives you 11 stickers. Your brother then gives you 5 more stickers. How many stickers do you have in total? | ANSWER: First, 4 × 11 = 44 stickers. Then, 44 + 5 = 49 stickers.

MCQ

Quick Quiz

Which of these is the correct way to calculate 4 × 11?

4 + 11

11 + 11 + 11 + 11

4 × 10 + 1

4 × 4 × 4 × 4

The Correct Answer Is:

Option B correctly shows that multiplication is repeated addition, so 4 × 11 means adding 11 four times. Option A is addition, not multiplication. Options C and D are incorrect calculations.

Real World Connection

In the Real World

Imagine you are helping your parents count money at their small shop. If a customer buys 4 items, and each item costs ₹11, you quickly use 4 × 11 to tell them the total is ₹44. This skill helps in managing daily transactions with speed and accuracy, just like how billing software in stores does it!

Key Vocabulary

Key Terms

MULTIPLICATION: A mathematical operation that represents repeated addition of the same number | PRODUCT: The result of multiplying two or more numbers | TIMES TABLE: A list of the multiples of a particular number | FACTOR: A number that is multiplied by another number to get a product

What's Next

What to Learn Next

Great job understanding 4 × 11! Next, you can explore multiplying larger numbers by single digits, like 4 × 23. This will help you build a strong foundation for more complex calculations and real-world problem-solving.