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What is Seventy-Three?
Grade Level:
Pre-School – Class 2
All domains without exception
Definition
What is it?
Seventy-Three is a natural number that comes after 72 and before 74. It is an odd number, meaning it cannot be perfectly divided by 2. We write it using the digits 7 and 3.
Simple Example
Quick Example
Imagine you are counting your favourite cricket player's runs. If he scored 72 runs in the last match and then added one more run in this match, his total score would be Seventy-Three runs. It's just one more than 72.
Worked Example
Step-by-Step
Let's find Seventy-Three on a number line.
1. Start at zero (0) on the number line.
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2. Move 70 steps to the right. You are now at the number 70.
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3. From 70, move 3 more steps to the right.
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4. You will land on the number 73.
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So, Seventy-Three is 70 + 3 = 73.
Why It Matters
Understanding numbers like Seventy-Three is the foundation for all math. It helps you count, add, subtract, and even understand bigger concepts like money or time. Engineers use numbers to design bridges, and scientists use them to measure experiments.
Common Mistakes
MISTAKE: Writing Seventy-Three as 703 or 730 | CORRECTION: Seventy-Three is written as 73. Remember the 'ty' in seventy means 7 tens, and 'three' means 3 ones.
MISTAKE: Confusing Seventy-Three (73) with Thirty-Seven (37) | CORRECTION: Seventy-Three has 7 in the tens place and 3 in the ones place. Thirty-Seven has 3 in the tens place and 7 in the ones place.
MISTAKE: Thinking Seventy-Three is an even number | CORRECTION: Seventy-Three is an odd number because when you divide 73 by 2, you get 36 with a remainder of 1. Even numbers always have a remainder of 0 when divided by 2.
Practice Questions
Try It Yourself
QUESTION: What number comes just after Seventy-Two? | ANSWER: Seventy-Three (73)
QUESTION: If you have 70 laddoos and your friend gives you 3 more, how many laddoos do you have in total? | ANSWER: 73 laddoos
QUESTION: A bus has 75 seats. If 2 seats are empty, how many passengers are on the bus? | ANSWER: 73 passengers (75 - 2 = 73)
MCQ
Quick Quiz
Which of these represents the number Seventy-Three?
37
73
703
7 + 3
The Correct Answer Is:
B
Seventy-Three means 7 tens and 3 ones, which is written as 73. Options A, C, and D represent different numbers or operations.
Real World Connection
In the Real World
When you use your mobile phone, the battery percentage might show 73% remaining. Or, if you're checking train ticket availability on IRCTC, you might see 73 seats left on a particular train. Numbers like 73 are everywhere in our daily life, from bus numbers to prices of items in a shop.
Key Vocabulary
Key Terms
NATURAL NUMBER: A counting number like 1, 2, 3... | ODD NUMBER: A number that cannot be divided exactly by 2 | PLACE VALUE: The value of a digit based on its position in a number | DIGIT: A symbol used to write numbers (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)
What's Next
What to Learn Next
Now that you understand what Seventy-Three is, you can explore other numbers and their properties. Next, you can learn about even and odd numbers in more detail, or move on to understanding numbers up to 100 and beyond!
