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    E:\Working\Brother_Education\Foundational_Stage_Maths-2_(11-09-2024)\Open_Files\Chap_02
                   \ 11-Sep-2024  Bharat Arora   Proof-3                                    Reader’s Sign _______________________ Date __________

                           Practice Time 2b

                  Find the sum of the following.

                  1.       t    O            2.       t    O           3.       t    O           4.       t    O

                           1    1                     6    7                    2    2                    1    5
                           1    4                     2    0                    2    0                    5    1
                       +   3    2                 +   1    2                +   2    6                +   1    2

                  5.       t    O            6.       t    O           7.       t    O           8.       t    O

                           5    4                     4    1                    2    4                    6    4
                           1    2                     2    0                    3    2                    1    2
                       +   1    1                 +   2    6                +   1    3                +   1    3

                  reGrOuPING OF NumberS

                  Mishti is playing with blocks. Her friend Drishti
                  joins her to play making tens with ones.

                  They know that 10 ones make 1 ten.

                              10 ones                              1 ten

                  Mishti takes 18 blocks. She regroups 18 blocks in

                  the following arrangement.

                                                                                                        Note
                             18 ones                             1 ten 8 ones                  When we have more
                                                                                               than 9 ones, we regroup
                              t    O                                t    O                     10 ones into 1 ten.
                                   18                               1    8

                  That is, 18 ones = 10 ones + 8 ones = 1 ten 8 ones.

                   teacher’s   Demonstrate the regrouping of numbers into tens and ones with the help of blocks/dots/circles/shapes.
                      tip

                  Mathematics-2                                                                                          39

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