EXERCISE 3 - ADDITION

EXERCISE 2 - ADDITION

EXERCISE 1 - ADDITION

TWO – DIGIT ADDITION

TWO – DIGIT ADDITION

It involves the addition of numbers between ten ( 10 ) and ninety - nine ( 99 ).

In the two digit numbers, the digit on the right are called ‘ ones ’ and the digits on the left are called ‘ tens ‘

EXAMPLE 1 :

Tens      Ones
  1                             5

	15  +  12  = 2 7

 

First, we add the ones :

5  + 2  =  7  

Then we add the tens :

1  +  1  = 2

So the sum is 27.

VIDEO 1 :

TOPIC - NUMBERS 0 -10

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LET'S COUNT.......

Numbers	Word
0	zero
1	one
2	Two
3	Three
4	Four
5	Five
6	Six
7	Seven
8	Eight
9	Nine
10	Ten

TOPIC - ADDITION

ADDITION

The process of calculating the total value of two or more numbers is called addition.

The total value is also called sum.

The symbol +  ( plus ) indicates addition.

The symbol = ( equals ) indicates the sum.

1 +  1 = 2 is read as one plus one equals two

SINGLE - DIGIT ADDITION

It involves the addition of numbers between zero ( 0 ) and nine ( 9 )

Example : 2 + 4 = 6

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