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    E:\Working\Brother_Education\Preparatory_Stage_Maths-3_(11-09-2024)\Open_Files\CHAP_02
                 \ 02-Nov-2023               Sonia Suyal   Proof-1                            Reader’s Sign _______________________ Date __________

                  example 1: Find the sum of 6043 and 2954.

                  Solution:  Write the number in columns and use the following steps:
                  Step 1: Add the ones.                                     3 + 4 = 7 ones

                           Write 7 in the ones column.
                  Step 2: Add the tens.                                     4 + 5 = 9 tens               th H      t   O

                           Write 9 in the tens column.
                  Step 3: Add the hundreds.                                 0 + 9 = 9 hundreds            6    0   4    3
                           Write 9 in the hundreds column.                                             + 2     9   5    4

                  Step 4: Add the thousands.                                6 + 2 = 8 thousands           8    9   9    7
                           Write 8 in the thousands column.

                           Thus, the sum of 6043 and 2954 is 8997.
                  Addition of three 4-digit numbers

                  Adding three 4-digit numbers is the same as adding three 3-digit numbers.
                  example 2: Find the sum of 1632, 2140 and 117.
                  Solution:   Write the number in the place value column and add using the

                                 following steps:
                                 Step 1: Add the ones.               2 + 0 + 7 = 9 ones                  th H      t   O

                                 Step 2: Add the tens.               3 + 4 + 1 = 8 tens                   1    6   3    2
                                 Step 3: Add the hundreds.           6 + 1 + 1 = 8 hundreds               2    1   4    0

                                 Step 4: Add the thousands.  1 + 2 + 3 = 6 thousands                   + 3     1   1    7
                                 Thus, the sum of 1632, 2140 and 3117 is 6889.                            6    8   8    9

                           practice time 2C

                  1.  Add the following.
                       (a)    th H      t    O          (b)     th H     t    O          (c)     th H      t   O

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

                       (d)    th H      t    O          (e)     th H     t    O          (f)     th H      t   O

                               2    4   3    5                  4    2   0    8                  1    0    2   1
                               1    0   5    0                  1    0   2    1                  3    0    5   3
                            + 2     4   1    0               + 1     0   3    0               + 4     0    0   3

                  Mathematics-3                                                                                          37

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