Addition Maths Kid Grade 2

Addition : Taking numbers together is called addition.
                  Symbol for addition is + .

 for example 4 + 5 = 9
There are two addend 4 and 5 whose sum is 9.

• When 0 ( zero ) is added to a number, the sum is the same number.  5 + 0 = 5
• When 1 ( one ) is added to a number , the sum is the next number . 4 + 1 = 5
• Regrouping : Writing a number in different way is called regrouping 

          For example : 25 Ones = 2 Tens 5 Ones
                                 34 Tens = 3 Hundred 4 Tens

• Addition of number with carry 

        When two numbers in ones place are added, the sum may be grater than 9. Then regroup the                sum as tens and ones.
     
        For Example : Add  87 and 35

7 + 5 = 12  ( 1 Ten 2 ones )  { Regrouping }

H	T	O
	8	7
	3	5

                            __________
Sum                        1    2      2

• Adding two numbers in any order gives the same sum ( Commutative Property )

              3 + 5 =  5 + 3 = 8

Important : Tell kids ( students) the need for proper alignment of numbers.  Keeping digits in proper places helps prevent errors. Help kids to realise that adding of 3-digit numbers is similar to adding of 2-digit numbers.

Please visit to my next post for problems / worksheet in Maths Addition Kids Grade 2.
Addition practise exercise : http://eschoolmate.blogspot.in/2017/04/addition-maths-practice-question.html