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    Fun                  Activity                 21 st

                                                                                                   Century   #Computational Thinking
                                                                                                    Skills
                        1.  You have to reach the 'Finish' circle from the 'Start' circle by solving subtraction
                           sums and following answer paths.

                                          4754                 3447                 8304                 7420
                                 Start!  –2428      2216      –2383      1164       –1746     6458      –1035
                                            A                    b                    C                    d

                                          2316     2326        1064       1144      3149      6558      6385

                                          6302                 5031                 4836                 6210
                                        –5054       1348      –3987      1064      –1687      3249      –2892
                                            E                    F                    g                    H

                                                     6868                                      3218
                                          1248                 1164      1044       3118                 3318

                                          9633                 8458                 7014                 9289
                                         –2765      6968      –7294      1264      –3896      4218      –2899
                                             I                   J                    K                     l

                                                                                                        Finish!
                          Which path did you follow? A → .... → L

                        2. Take away one matchstick to make the statement correct.

                        3. Put the numbers in the appropriate places to balance the grid.

                                                                           20    –          =
                                                8    11    14   22         +           +          +

                                               23    25   45    12               –          =

                                                                           =           =          =

                                                                                 –          =

                                                                                                                  69
                                                                                                  Subtraction

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