Page 140 - New Medley 3 Semester 1
P. 140

Vertical Multiplication of 4 Digit Numbers by 1 Digit Number



               Example 1:  Multiply: (a) 3213 by 3 (b) 1216 by 5


               Solution:            (a)    Th H       T    O     (b)  Th H                  T   O

                                            3    2    1    3                      1         3

                                                      ×    3                      1    2    1    6


                                            9    6    3    9                                ×    5

                                                                                  6    0    8    0


                                                        EXERCISE 4.1



               Multiply:


                     1.    Th H     T    O   2.     Th H      T   O   3.    Th H      T   O    4.   Th H      T   O
                           2 3 3 4                   2 3 1 2                 2 1 1 2                 1 0 1 1

                                    × 2                       × 3                     × 4                     × 5





                     5.    Th H     T    O   6.     Th H      T   O    7.   Th H      T   O   8.    Th H      T   O

                           1 0 1 0                   1 1 0 1                 1 0 1 1                 1 1 0 1

                                    × 6                       × 7                     × 8                     × 9





                     9.    Th H     T    O   10.    Th H      T   O   11.   Th H      T   O   12.   Th H      T   O

                           1 6 5 8                   1 2 4 6                 1 4 6 9                 1 0 7 8
                                    × 2                       × 3                     × 4                     × 5






                    13.    Th H     T    O    14.   Th H      T   O   15.   Th H      T   O  16.    Th H      T   O
                           1 0 8 3                   1 3 8 2                 1 1 9 8                 1 0 2 7

                                    × 6                       × 7                     × 8                     × 9







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