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    D:\Working\TouchPad_Maths\TouchPad_Maths_1\Open_Files\Chap_07\Chap_07
                   \ 17-Nov-2025     Surender Singh Rothan   Proof-7                           Reader’s Sign _______________________ Date __________

                                                                                                Mental Maths

                                                                                                  21 st
                  Fill in the blanks.                                                            Century   #Computational Thinking
                                                                                                  Skills
                    1.      5     +     10     =     15                   2.  95  –         10     =  85

                          15      +     10     =     25                       85  –         10     =  75
                          25      +     10     =  ____                        ____  –       10     =  65

                          35      +     10     =  ____                        ____  –       10     =  55

                         ____  +        10     =     55                       55  –  ____   =  45

                         ____  +        10     =     65                       45  –         10     =  35

                          65      +  ____  =         75                       35  –         10     =  ____
                          75      +  ____  =  ____                              25  –       10     =  ____

                         ____  +        10     =     95                         15    –     10     =  ____

                                                                                                         HOTS

                                                                                                     21 st
                                                                                                   Century   #Critical Thinking
                                                                                                    Skills
                    1.   Ankita had 38 picture cards. She gave 5 picture cards to

                         Anjali, 4 to Manju and 8 to Sujata. How many picture cards
                         are left with Ankita?

                         (Hint: Use number strip)
                          Answer: _______________________________

                    2.  Find the value of the orange               .

                                                               +            =     8

                                                               +            =     10

                                                                            =

                                                                                                                 121
                                                                                Addition and Subtraction up to 100

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