Addition for Class 1 Maths | Learning Concepts | ORCHIDS
Job Alert : To view our Careers Page Click Here X
info@orchids.edu.in (+91) 8-888-888-999
ORCHIDS The International School

Operations on Numbers

Addition for Class 1 Maths

The addition is a process of summing up two or more items together. Commonly we use the operations of addition when we work with money or time.
This concept introduces the operation and addition for class 1 maths students.

In this learning concept, the students will learn to

  • Addition with fingers
  • Addition using counters
  • Addition in number line
  • Add mentally
  • Word problems on addition for class 1

Each concept is explained to class 1 maths students with illustrations and examples, and a concept map is given to summarize the idea. At the end of the page, two printable worksheets with solutions are attached for students to practice.

Addition:

To find total or count the objects together we use addition.

Example:

basket of fruits

If we have some fruits in two baskets. We put them all together in one big basket. Now to find the total number of fruits, we need to do an Addition.

  • For the sentences ‘all together’, ‘total number’, ‘how many in all’, etc., we need to do addition.
  • Addition is represented by the symbol ‘+’ read as ‘plus’.

Example :

Addition of the numbers 3 and 4 is written as: ‘3+4’.

It is read as ‘3 plus 4’.

Representation:

  • We can add numbers by writing them horizontally as well as vertically in columns.
  • The numbers that are added together are called Addends.
  • When we add two or more numbers, the result is called the Sum. For example;
  • addends and sum
  • The symbol ‘=’ is read as ‘is equal to’.
  • ‘4 + 5 = 9’ is read as 4 plus 5 is equal to 9.

Addition of single digit numbers

We can add two numbers in so many ways.

Addition with Fingers

how many fingers in your hand

We can use our hand’s fingers to do the addition. Let’s see.

how many fingers in your hand

Nisha has three chocolates. Bipin gives her two more chocolates. Now, we have to find the total number of chocolates Nisha has.

First method:

For three chocolates open three fingers of one hand.

how many fingers in your hand

For two chocolates open two more fingers of the other hand.

how many fingers in your hand

Now count all the fingers together.

how many fingers in your hand

We get the number 5.

So, Nisha has 5 chocolates in total now.

how many fingers in your hand

Second method:

For adding 3 and 2, open only two fingers of the hand and count after the number 3.

how many fingers in your hand

It will also give the same answer.

_______________________________________________________________________

Addition Using Counters

Counters: Each counter (object or shape) represent a number.

For example:

6+3= ?
Here we can take any object or shape to represent the numbers. (Counter)

For the number 6 draw six circles.

rough circle

For the number 3, draw 3 more circles.

rough circle

Now, count all the circles together.

rough circle

There are 9 circles in total.

So, we came to know that,

6+3= 9

_________________________________________________________________________

Addition in Number Line

Number line: A straight line on which numbers are placed at the same distance and in the correct order. Numbers are placed from left to right.

number line addition

By using number line, we can easily make an addition.

For example:

2+6= ?

First on a number line mark the number 2.

number line addition

Now move six steps forward to the right side and observe the number where we reach.

number line addition

We reach at the number 8.

So, 8 is the sum of 2 and 6.

2+6= 8

__________________________________________________________________

Add Mentally

By counting mentally, we can do addition.

For example:

4+3= ?

Now, let’s think about the number 4 and count 3 more numbers after 4.

girl thinking images

We get the number 7.

So, the sum of the numbers 4 and 3 is equal to 7.

__________________________________________________________________

Facts

1. When we add 0 to a number, the answer is the number itself.

Example:

    1+0=1

    6+0=6

    0+8=8

    0+9=9

__________________________________________________________________

2. When we add 1 to a number, the answer is the next number.

Example:

1. 2+1=3

Counting the one step forward to 2, we get the number 3.

addends and sum

Finding missing numerals in addition:

Example:

G1_18_ADD_5.png

Here we can take any two numbers whose sum is 5.

0 + 5 = 5

1 + 4 = 5

2 + 3 = 5

_____________________________________________________________

Word Problems on Addition for Class 1

We can solve word problems based on addition by the following steps

Step 1: Identify the numbers in the word problem which need to be added.

Step 2: Write the word problem in the form of addition.

Step 3: Do the addition to find the sum.

Example:

Question: There are 3 red balls and 6 green balls in a box. How many total balls are there in the box?

Answer: Since there are 3 red balls and 6 green balls in the box, we need to add 3 and 6 to find the total number of balls in the box.

G1_19_ADD_GREEN BALL.png

There is total 9 balls in the box.

G1_20_ADD_DID YOU KNOW.png

G1_21_ADD_MIND MAP.png
  • -

    Admission Enquiry

    A Journey To A Better Future Begins With Us