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               \ 11-Sep-2024  Bharat arora   Proof-6                                    Reader’s Sign _______________________ Date __________





                       Practice time 7b



              Add the following.
              1.      tens Ones          2.    tens Ones        3.     tens Ones          4.     tens Ones


                        3     0                  3     0                 7     0                   3      0

                   +    5     0              +   3     0            +    1     0               +   2      0



              5.      tens Ones          6.    tens Ones        7.     tens Ones          8.     tens Ones


                        3     0                  5     0                 6     0                   7      0

                   +    4     0              +   1     0            +    3     0               +   2      0





              Adding 2-digit numbers


              Example 1: In the store room, there
              are 36 boxes of corn flakes and 22

              boxes of cheerios. How many boxes of

              cereal are there?
              Solution: To know the total number of

              cereal boxes, we need to add 36 and

              22.
              Step 1.  First arrange the  Step 2. Add the ones first. Step 3.  Now, add the

                        numbers one below          6 ones + 2 ones = 8 ones                     tens.
                        the other keeping          Write 8 in the ones                3 tens + 2 tens = 5 tens

                        in mind the place          column.                            Write 5 in the  tens
                        value of the digits.                                          column.


                           tens Ones                            tens Ones                          tens Ones


                             3     6                              3      6                           3     6
                        +    2     2                          +   2      2                      +    2     2


                                                                         8                           5     8

              Thus, the store has 58 boxes altogether.



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