What is Seventy-One?

S0-SA1-1052

Grade Level:

Pre-School – Class 2

All domains without exception

Definition

What is it?

Seventy-one is a natural number that comes right after 70 and just before 72. It is written as '71' using two digits, where '7' represents seventy (seven tens) and '1' represents one unit.

Simple Example

Quick Example

Imagine you are counting your pocket money. If you have 70 rupees and your uncle gives you 1 more rupee, then you will have 71 rupees in total. That's seventy-one!

Worked Example

Step-by-Step

Let's say you are collecting cricket cards. You already have 65 cards.
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Your friend gives you 6 more cards.
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To find out how many cards you have now, you add 65 and 6.
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65 + 6 = 71.
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You now have 71 cricket cards. So, seventy-one is the total number of cards.

Why It Matters

Understanding numbers like seventy-one is fundamental to all mathematics and daily life. It helps you count, measure, and calculate things, which are skills used by engineers, shopkeepers, and even data scientists.

Common Mistakes

MISTAKE: Writing '701' instead of '71' when hearing 'seventy-one'. | CORRECTION: Remember 'seventy-one' means seven tens and one unit, so it's '71'. '701' is 'seven hundred one'.

MISTAKE: Confusing the order of digits, like writing '17' for 'seventy-one'. | CORRECTION: The 'seven' in 'seventy' comes first, so the digit 7 comes first, followed by 1, making it '71'.

MISTAKE: Thinking 'seventy-one' is a very large or very small number. | CORRECTION: Seventy-one is a two-digit number, larger than single-digit numbers but smaller than three-digit numbers like 100.

Practice Questions

Try It Yourself

QUESTION: What number comes immediately after 70? | ANSWER: 71

QUESTION: If you have 7 tens and 1 unit, what number do you have? | ANSWER: 71

QUESTION: Your grandmother is 68 years old. How many years until she turns 71? | ANSWER: 3 years (71 - 68 = 3)

MCQ

Quick Quiz

Which of these numbers is seventy-one?

701

The Correct Answer Is:

Option B, '71', correctly represents seventy-one, with 7 in the tens place and 1 in the units place. The other options represent different numbers.

Real World Connection

In the Real World

Seventy-one often appears in everyday Indian life. For example, if you buy groceries and your bill is 71 rupees, you need to pay that exact amount. Or, a bus route might be 'Route 71', showing its specific identification number.

Key Vocabulary

Key Terms

DIGIT: A single symbol used to write numbers (0, 1, 2...9) | TENS PLACE: The second digit from the right in a number, representing groups of ten | UNITS PLACE: The first digit from the right in a number, representing single items | NATURAL NUMBER: Counting numbers starting from 1 (1, 2, 3...)

What's Next

What to Learn Next

Now that you understand seventy-one, you can explore other numbers and their properties. Next, try learning about 'What is Seventy-Two?' or delve into place value to understand how numbers are built.