# 3-Digit Numbers

In this learning concept, the students will learn about class 2, 3- digit numbers. They will learn about consecutive numbers.

In this learning concept, the students will learn to

• Identify the smallest three-digit number and the greatest three-digit number.
• Expressing 3- digit numbers in numerals and words
• Relate the use of the 3-digit number in real-life

Each concept of a 3-digit number is explained to class 2 maths students using illustrations, examples, and mind maps. Students can assess their learning by solving the two printable worksheets given at the pages’ end.
Download the 3-digit number worksheet for class 2 and check the solutions for the concept of numbers provided in PDF format.

A number is an arithmetic value used for representing the quantity and in making calculations.

• The numbers which are continuously following each other in the order of smallest to greatest are called consecutive numbers.

Example :

Numbers like 101, 102, 103, 104, …etc are called consecutive numbers.

Here we will discuss 3 - digit numbers. We start counting three-digit numbers from 100.

### Smallest Three-Digit Number

• The greatest two-digit number is 99 and 100 comes just after 99.
• 3-Digit numbers start from 100. It is the smallest 3-digit number.
• The number 100 is important for counting. We can represent 100 as a group to make counting easy.
Examples:   100 can be represented using a 10 by 10 chocolate bar.

So, 236 can be represented by

2 boxes of 10 by 10 chocolate bars, 1 boxes of 5 by 5 chocolate bars, 1 boxes of 5 by 2 chocolate bars and 1 chocolate piece

Using ten rupees notes we can also count 100.

### Read and Write 3-digit Numbers in Numerals and Words

• According to their values, the three digits are placed from right to left at one’s place, ten’s place, and hundred’s place respectively.
• To read and write numbers beyond 100, we can proceed in the same way as we have done it for 2-digit numbers.
Hundred’s In Word
Range Numerals Numbers in word
100 – 199 100, 101, 102, ….,199 One hundred, One hundred One, One hundred Two, ….,One hundred Ninety-Nine
200 – 299 200, 201, 202, …, 299 Two Hundred, Two hundred One, Two hundred Two, …., Two hundred Ninety-Nine
300 – 399 300, 301, 302, …, 399 Three hundred, Three hundred One, Three hundred Two, …., Three hundred Ninety-Nine
400 – 499 400, 401, 402, …, 499 Four hundred, Four hundred One, Four hundred Two, …., Four hundred Ninety-Nine
500 – 599 500, 501, 502, …, 599 Five hundred, Five hundred One, Five hundred Two, …., Five hundred Ninety-Nine
600 – 699 600, 601, 602, …, 699 Six hundred, Six hundred One, Six hundred Two, …., Six hundred Ninety-Nine
700 – 799 700, 701, 702, …, 799 Seven hundred, Seven hundred One, Seven hundred Two, …., Seven hundred Ninety-Nine
800 – 899 800, 801, 802, …, 899 Eight hundred, Eight hundred One, Eight hundred Two, …., Eight hundred Ninety-Nine
900 – 999 900, 901, 902, …, 999 Nine hundred, Nine hundred One, Nine hundred Two, …., Nine hundred Ninety-Nine

Example : Write these numbers in words.

456, 897, 733, 998

 456 Four Hundred and Fifty-Six 897 Eight Hundred and Ninety-Seven 733 Seven Hundred and Thirty-three 998 Nine Hundred and Ninety-Eight

### Greatest Three-Digit Number

The Greatest 3-Digit number is 999.

In words, 999 is written as Nine Hundred Ninety-Nine.

### Uses in Real Life

In our real life we have seen uses of 3-Digit numbers of various kinds. The three-digit number are seen.

• In the notes
• Weights used in the shops
• In the strips of medicine informing about the amount of a certain drug etc.

Following pictures are given for example to show how 3-digit numbers are useful in daily life.