What is 3 × 5?

S1-SA1-0671

Grade Level:

Class 2

Maths, Computing, AI

Definition

What is it?

3 × 5 means adding the number 3 five times, or adding the number 5 three times. It is a basic multiplication problem that helps us quickly find the total when we have equal groups.

Simple Example

Quick Example

Imagine you have 3 friends, and each friend eats 5 laddoos. To find out the total number of laddoos eaten, you would do 3 × 5. This tells you the total without counting each laddoo one by one.

Worked Example

Step-by-Step

Let's find the answer to 3 × 5.

Step 1: Understand what 3 × 5 means. It means 3 groups of 5, or 5 added to itself 3 times.

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Step 2: Let's use repeated addition. We will add 5 three times.

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Step 3: First addition: 5 + 5 = 10.

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Step 4: Second addition: Take the result from Step 3 and add 5 again: 10 + 5 = 15.

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Step 5: So, 5 + 5 + 5 = 15.

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Answer: 3 × 5 = 15.

Why It Matters

Understanding multiplication is key for many exciting fields! It's used by software engineers to make games, by data scientists to analyze cricket scores, and by AI developers to train smart systems. Mastering this helps you think logically and solve problems faster.

Common Mistakes

MISTAKE: Adding 3 and 5 to get 8. | CORRECTION: 3 × 5 is multiplication, not addition. It means 3 groups of 5, or 5 added 3 times, which is 15.

MISTAKE: Confusing the order, like thinking 3 × 5 is different from 5 × 3. | CORRECTION: For multiplication, the order doesn't change the answer. 3 × 5 is the same as 5 × 3, both equal 15.

MISTAKE: Counting on fingers inaccurately or skipping numbers. | CORRECTION: Practice your multiplication tables (tables of 3 and 5) or use repeated addition carefully to avoid errors.

Practice Questions

Try It Yourself

QUESTION: If one auto-rickshaw can carry 3 passengers, how many passengers can 5 auto-rickshaws carry? | ANSWER: 15 passengers

QUESTION: A gardener plants 5 rows of marigold flowers, with 3 flowers in each row. How many marigold flowers are there in total? | ANSWER: 15 flowers

QUESTION: You have 3 friends, and each friend gives you 5 stickers. If you already had 2 stickers, how many stickers do you have now? | ANSWER: 17 stickers (3 × 5 = 15; 15 + 2 = 17)

MCQ

Quick Quiz

What is another way to write 3 × 5?

3 + 3 + 3

5 + 5 + 5

3 + 5

5 + 3

The Correct Answer Is:

3 × 5 means adding 5 three times (5 + 5 + 5). Option A means 3 multiplied by 3. Options C and D are addition, not multiplication.

Real World Connection

In the Real World

When you buy 3 packets of biscuits, and each packet costs 5 rupees, you use 3 × 5 to quickly calculate the total bill of 15 rupees. Similarly, delivery apps like Swiggy or Zomato use multiplication to calculate total order costs for multiple items.

Key Vocabulary

Key Terms

MULTIPLICATION: A quick way to do repeated addition | PRODUCT: The answer you get when you multiply numbers | FACTOR: The numbers you multiply together (like 3 and 5 in 3 × 5) | REPEATED ADDITION: Adding the same number multiple times

What's Next

What to Learn Next

Great job understanding 3 × 5! Next, you can explore other multiplication facts and learn about multiplication tables. This will make you even faster at solving everyday math problems and prepare you for division!