1. Odd and Even numbers 2. Greater and smaller numbers 3. Ascending and Descending order

__Comparison
of numbers__

** **

__Odd
and Even numbers__

Ramu has 125 groundnut chocolates and
Geetha has 200 groundnut chocolates. Who has more?

**Odd numbers and even numbers**

Even numbers 0 2 4 6 8 10 12

Odd numbers 1 3 5 7 9 11 13

Numbers ending with 1, 3, 5, 7 and 9
are called ODD numbers.

Numbers ending with 0, 2, 4, 6 and 8
are called EVEN numbers.

** **

__Activity 5__

Colour the balloons with
odd number by yellow and even number by Red.

In number sequence,
after every odd number there is an even number. Similarly after every even
number there is an odd number.

** **

__Activity 6__

**Circle/Underline the even numbers**

** 8,** 69,

112, 131, __156__,
__170__, __186__

** 226**,

** 542, 570,** 575,

931, ** 948,
952, 982,** 999

**Circle**/Underline** the odd numbers**

__7__**,** 26, ** 33,
61,** 84

** 105,** 116,

** 219,** 232,

540, __555__,
__557__, __603__, __609__

918, ** 919,
935, 953,** 998

** **

__Greater
and smaller numbers__

Amuthan has 3 chocolates and his
sister Meenakshi has 8 chocolates.

Who has more?

In a number line 3 comes before 8 or 8
comes after 3.

3 is smaller than 8 or

8 is greater than 3

Meenakshi has more chocolates.

**Know more:** ‘0’ does not have any value at the beginning of a number.

** **

__Using
symbols__

** **

8 is greater than 3

we write 8 > 3

91 is greater than 49

we write 91 > 49

3 is smaller than 8

we write 3 < 8

27 is smaller than 40

we write 27 < 40

**1. Comparison of numbers
with different digits.**

The number which has more digits is a
greater number. The number 115 has 3 digits and 89 has only 2 digits. So 115
is **greater than** 89. We write 115 > 89.

Compare 115 and 89

**2. Comparison of numbers
with equal digits.**

If the number of digits are equal,
compare the digit in the hundreds place. The number which has a greater digit
in the hundreds place is greater. 2 is greater than 1. So, 250 is greater than 160. We
write 250
> 160. We can also say 160 < 250.

Compare 160 and 250

Look at the hundreds place

**3. If the digits in the
hundreds place are same, compare the digits in the tens place. The number which
has the greater digit in the tens place is the greater number.**

The digit in the hundred place are the
same. Compare the digits in the tens place. 5 is greater than 4. So, 151 is greater than 143. We write 151 > 143. We can also say 143 < 151.

**4. ****If the digits in the hundred and
the tens place are same, compare the digits in the ones place. The number which
has the greater digit in the ones place is the greater number.**

The digits in the hundred place and tens place
the same.

Comparing the digits in the ones place.

Compare 141 and 148

8 is greater than 1

So the number 148 is
greater than 141.

We write 148 >
141

We can also say 141
< 148.

**5. Comparing numbers with same
value in all the digits**

The digits in the hundreds places, tens place
and ones place are same.

So, 536 = 536

** **

__Try this__

Put <, >, and = in the boxes
provided.

103 __ 438** Answer:** 103 **<** 438

250 __ 069** Answer:** 250 **>** 069

408 __ 308** Answer:** 408 **>** 308

710 __ 710** Answer:** 710 = 710

614 __ 618** Answer:** 614 < 618

719 __ 917** Answer:** 719 < 917

The greatest three digit
number is 999.

The smallest three digit
number is 100.

** **

__Ascending
and Descending order.__

111, 112, 113, 114, 115

When we write the numbers from smaller
to greater, we call it **“Ascending order”**

When we write numbers from greater to
smaller, we call it **“Descending order”**

__Example:__

We arrange the numbers 235, 230, 238
in ascending order and in descending order.

**Ascending order**

230 < 235 < 238

230, 235, 238

**Descending order**

238 > 235 > 230

238, 235, 230

__Try this__

Write the even numbers
between 245 and 255 in descending order.

Answer: 254, 252, 250,
248, 246

__Try this__

**1. Arrange the following numbers in ascending order.**

a. 55, 63, 40, 8

__8__** 40 55 63**

b. 217,201,215,219

__201__** 215 217 219**

c. 50, 405, 109, 600

__50__** 109 405 600**

d. 785, 757, 718, 781

__718__** 757 781 785**

**2. Arrange the following numbers in descending order.**

a. 212,503,369, 60

__503__** 369 212 60**

b. 051, 100, 810, 167

__810__** 167 100 051**

c. 323, 303, 332, 33

__332__** 323 303 33**

d. 205, 210, 290, 300

__300__** 290 210 205**

Tags : Numbers | Term 1 Chapter 2 | 3rd Maths , 3rd Maths : Term 1 Unit 2 : Numbers

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3rd Maths : Term 1 Unit 2 : Numbers : Comparison of numbers | Numbers | Term 1 Chapter 2 | 3rd Maths

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