Page 92 - Revised Maths Wisdom Class - 1
P. 92

90                                                                                                 MATHS

            We have learned to subtract one-digit numbers. Let us now learn to subtract two
            digit numbers:

            Step 1: Write the numbers in column form.

            Step 2: Write the numbers in expanded form.

            Step 3: Subtract ones and then tens.

            Let us subtract 23 from 47

                        T         O

                         4        7      =      4 tens       and  7 ones

                     –  2         3      =      2 tens       and  3 ones

                                                2 tens       and  4 ones            =      24


            Let us subtract 43 from 97

                        T         O

                         9        7      =      9 tens       and  7 ones

                     –  4         3      =      4 tens       and  3 ones


                                                5 tens       and  4 ones            =      54



            Let us subtract 35 from 66

                        T         O

                         6        6      =      6 tens       and  6 ones

                     –  3         5      =      3 tens       and  5 ones


                                                3 tens       and  1 one             =      31






                  Subtract the following.


                        T         O
                        8          4     =              tens      and            ones


                      – 2          3     =              tens      and            ones


                                                        tens      and            ones        =
   87   88   89   90   91   92   93   94   95   96   97