What is Seventy-Nine?

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Grade Level:

Pre-School – Class 2

All domains without exception

Definition

What is it?

Seventy-nine is a number that comes after seventy-eight and before eighty. It is written as '79' in digits. It represents seven tens and nine ones.

Simple Example

Quick Example

Imagine your favourite cricket team scored 78 runs. If they hit one more run, their total score would become 79 runs. So, 79 is just one more than 78.

Worked Example

Step-by-Step

Let's count up to 79.
1. Start counting from 1.
2. Keep counting: 1, 2, 3, ...
3. You will reach 70, then 71, 72, 73, 74, 75, 76, 77, 78.
4. The very next number after 78 is 79.
So, 79 is the number you get when you add 1 to 78.

Why It Matters

Understanding numbers like 79 is crucial for daily life and many subjects. It's the building block for basic arithmetic, counting money, and even understanding data. Scientists, engineers, and even shopkeepers use numbers constantly.

Common Mistakes

MISTAKE: Confusing 79 with 97 | CORRECTION: Remember that in 79, the '7' is in the tens place (meaning 70) and '9' is in the ones place. In 97, '9' is in the tens place (meaning 90) and '7' is in the ones place.

MISTAKE: Writing 79 as 'seventy-nine' when asked for digits | CORRECTION: When asked for digits, write '79'. 'Seventy-nine' is the word form.

MISTAKE: Thinking 79 is an even number | CORRECTION: 79 is an odd number because it cannot be perfectly divided by 2 (it leaves a remainder of 1). Even numbers always end in 0, 2, 4, 6, or 8.

Practice Questions

Try It Yourself

QUESTION: What number comes just before 79? | ANSWER: 78

QUESTION: If you have 7 tens and 9 ones, what number do you form? | ANSWER: 79

QUESTION: A bus has 78 passengers. If one more passenger gets on, how many passengers are there now? | ANSWER: 79 passengers

MCQ

Quick Quiz

Which of these represents the number seventy-nine?

The Correct Answer Is:

Option B, 79, is the correct way to write seventy-nine in digits. Options A, C, and D represent different numbers.

Real World Connection

In the Real World

When you buy groceries, the bill might come to Rs. 79. Or, if your mobile data plan gives you 79 GB of data for the month, you know exactly how much you have. Even the number of players in a kabaddi team can be related to counting up to numbers like 79.

Key Vocabulary

Key Terms

NUMBER: A count or measure | DIGIT: A single symbol used to write numbers (0, 1, 2, 3, 4, 5, 6, 7, 8, 9) | TENS PLACE: The second position from the right in a number, representing groups of ten | ONES PLACE: The first position from the right in a number, representing single units

What's Next

What to Learn Next

Now that you understand 79, you can learn about numbers like 80, 81, and so on. This will help you count higher and understand larger quantities, which is useful for everything from managing your pocket money to understanding sports scores.