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Chapter Notes: Numbers from One to Nine - Notes | Study Mathematics for Class 1: NCERT - Class 1

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Chapter Notes: Numbers from One to Nine - Notes | Study Mathematics for Class 1: NCERT - Class 1

What is As Many As?
As many as is all about counting and finding out that the objects present on both sides are equal to each other.
There are 3 Icecreams on both sidesThere are 3 Icecreams on both sides

Let us understand this concept.
Example: Megha has 4 dolls. She needs as many dresses as she has dolls.
So how many dresses she needs for them?

Chapter Notes: Numbers from One to Nine - Notes | Study Mathematics for Class 1: NCERT - Class 1

Megha needs 4 dresses for 4 dolls.

Question for Chapter Notes: Numbers from One to Nine
Try yourself:You have 5 friends and you want to give 1 chocolate to each of your friends. How many chocolates do you need to buy for 5 friends?

Chapter Notes: Numbers from One to Nine - Notes | Study Mathematics for Class 1: NCERT - Class 1

View Solution

What is More or Less?

More means greater, and less means smaller. 

  • In the numbers 3 and 2, we know that 3 is greater than 2.  This means,

Chapter Notes: Numbers from One to Nine - Notes | Study Mathematics for Class 1: NCERT - Class 1

  • We can also say 2 is less than 3. This means,

Chapter Notes: Numbers from One to Nine - Notes | Study Mathematics for Class 1: NCERT - Class 1

Example 1: Rahul and Megha are fond of candies and toys. Let’s count how many candies/toys they have. 

Chapter Notes: Numbers from One to Nine - Notes | Study Mathematics for Class 1: NCERT - Class 1

Megha has 15 toys

Rahul has 16 candies.

So, Rahul has a greater number of candies. 

Example 2:  Look at the picture given below. Can you tell which basket has more fruits?

Chapter Notes: Numbers from One to Nine - Notes | Study Mathematics for Class 1: NCERT - Class 1

The basket on the left has 9 fruits.

The basket on the right has 2 fruits

So, there are more fruits in the basket on the right.

What are Missing Numbers?

A series or sequence where a number is missed is known as a missing number sequence. 

Look at the example given below. Numbers given are 1, ___, ___, 4, ___, ___, 7, ___, ___.

Chapter Notes: Numbers from One to Nine - Notes | Study Mathematics for Class 1: NCERT - Class 1

We just learned the counting above, so we know that the correct series will be 1, 2, 3, 4, 5, 6, 7, 8, 9.

Question for Chapter Notes: Numbers from One to Nine
Try yourself:Add the missing numbers

2,___, 4,___, 6

View Solution

What is Zero?

Let's understand the concept of zero with the help of an example.

How many chocolates do you see in the given picture?

Chapter Notes: Numbers from One to Nine - Notes | Study Mathematics for Class 1: NCERT - Class 1If you give these 2 chocolates to your best friend, then how many chocolates will be left?

There will be 0 chocolates left.

ZeroZero

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