What is 4 × 4?

S1-SA1-0679

Grade Level:

Class 2

Maths, Computing, AI

Definition

What is it?

4 × 4 means adding the number 4 to itself, four times. It is a basic multiplication problem that helps us understand how numbers grow when grouped equally.

Simple Example

Quick Example

Imagine you have 4 friends, and each friend brings 4 ladoos for a party. To find out the total number of ladoos, you would calculate 4 × 4. This tells you the total number of ladoos brought by everyone.

Worked Example

Step-by-Step

Let's find the value of 4 × 4.
Step 1: Understand that '4 × 4' means 4 groups of 4.
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Step 2: This can be written as repeated addition: 4 + 4 + 4 + 4.
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Step 3: Add the first two 4s: 4 + 4 = 8.
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Step 4: Add the next 4 to the sum: 8 + 4 = 12.
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Step 5: Add the last 4 to the new sum: 12 + 4 = 16.
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So, 4 × 4 = 16.

Why It Matters

Understanding multiplication like 4 × 4 is fundamental for many fields. In Computing, it helps calculate memory usage or data storage. In AI, basic math is the building block for complex algorithms. Careers like software developer, data scientist, or even an architect use these concepts daily.

Common Mistakes

MISTAKE: Thinking 4 × 4 is 4 + 4 = 8 | CORRECTION: 4 × 4 means adding 4 four times, not just twice. It's 4 + 4 + 4 + 4.

MISTAKE: Confusing 4 × 4 with 4 + 4 + 4 (three times) | CORRECTION: The second number (4) tells you how many times to add the first number (4). So, it should be added four times.

MISTAKE: Guessing the answer without doing the calculation | CORRECTION: Always use repeated addition or recall your multiplication tables to find the exact product.

Practice Questions

Try It Yourself

QUESTION: If you have 4 boxes, and each box has 4 pens, how many pens do you have in total? | ANSWER: 16 pens

QUESTION: What is the sum of four 4s? | ANSWER: 16

QUESTION: A cricket team scores 4 runs in each of the first 4 overs. What is their total score after 4 overs? | ANSWER: 16 runs

MCQ

Quick Quiz

Which of these expressions is equal to 4 × 4?

4 + 4

4 + 4 + 4 + 4

4 - 4

4 ÷ 4

The Correct Answer Is:

4 × 4 means adding the number 4 to itself four times. Therefore, 4 + 4 + 4 + 4 is the correct representation and value. Options A, C, and D represent different operations.

Real World Connection

In the Real World

When you buy 4 packets of biscuits, and each packet costs 4 rupees, you calculate 4 × 4 to know the total amount you need to pay. Similarly, if a 'kabaddi' team has 4 players, and each player needs 4 litres of water, you use 4 × 4 to find the total water needed.

Key Vocabulary

Key Terms

MULTIPLICATION: A way of adding equal groups quickly | PRODUCT: The answer to a multiplication problem | REPEATED ADDITION: Adding the same number multiple times | FACTOR: A number that is multiplied by another number

What's Next

What to Learn Next

Now that you understand 4 × 4, you can explore other multiplication facts like 5 × 5 or 6 × 6. Learning these will help you solve bigger problems and build a strong foundation for higher math.