Page 23 - Math Skill - 2
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Addition of 2-digit Numbers                                                                             21


        Addition

        Addition means combining objects of two or more collections.

                       or                                                              3    5           Addend


        Putting  things  together  is  called  addition.                          +    2    2           Addend
        ‘+’ (Plus) is the sign of addition.                                            5    7           Sum


        The numbers we add are called addends and the answer we get is called

        the sum or the total.


        Addition without Regrouping


        Add 32 and 26.


        To add 32 and 26,                     32                                                         T     O

        we can use blocks.                                                                                3     2


                                                                                                   +      2     6
                                              26






        Add the ones.                                                                                    T     O


        Count all the ones blocks                                                                         3     2
        to add the ones.                                                                           +      2     6


        2 ones + 6 ones = 8 ones                                                                                8






        Add the tens.                                                                                    T     O

        Count all the tens blocks                                                                         3     2

        to add the tens.                                                                           +      2     6

        3 tens + 2 tens = 5 tens                                                                          5     8




        So, 32 + 26 = 58
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