Page 98 - Arithmetic Std 2
P. 98

FOR ONLINE USE ONLY
                                                 DO NOT DUPLICATE

                  Word problems involving subtraction of numbers

                  by regrouping
         FOR ONLINE USE ONLY
                       Example


                  A school had 543 desks. It was found out that 129
                  desks were damaged. How many desks were not

                  damaged?


                          Solution       Hundreds          Tens          Ones

                                               5              4             3
                                          _
                                               1              2            9




                  Steps



                                                                                  Hundreds



                   1.    Subtract ones, 3 – 9.                                        Tens  Ones

                         9 can not be subtracted from 3.
                                                                                5 4 3
                                                                           – 1 2 9






                                                                                  Hundreds



                   2.    Take 1 tens from 4 tens. You                                 Tens  Ones

                         are left with 3 tens, the ones                             3 13

                         become 10 + 3 = 13 ones.                               5 4 3

                                                                           – 1 2 9







                                                      91

                                     PROPERTY OF UNITED REPUBLIC OF TANZANIA GOVERNMENT
                                           Ministry of Education, Science and Technology
       ARITHMETICS PUPIL'S STD 2.indd   91                                                    03/08/2019   13:06
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