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    E:\Working\Focus_Learning\Math_Genius_1_(05-10-2023)\Open_Files\03_Chap_3\Chap_3
                   \ 11-Sep-2024  Bharat Arora   Proof-6                                    Reader’s Sign _______________________ Date __________

                    Count the objects and add them together to fill in the box with the correct answer.

                    1.                                                2.

                                        6 + 4 =                                           3 + 5 =

                    3.                                                4.

                                        9 + 1 =                                           8 + 1 =

                    5.                                                6.

                                        8 + 2 =                                           7 + 3 =

                  Addition by Counting ForwArd

                  When we combine two or more collection of objects, the total number of objects
                  is the sum of the numbers.

                  For example, in the picture below there are 5 pineapples in the                    The sign ‘=‘ means
                  first group and 3 pineapples in the second group.                                     ‘is equal to’

                                                                                                      Knowledge Desk
                                                                                                   The first use of
                                                                                                   the symbols ‘+’ and
                  We start from 5 and count forward by 3 steps as:                                 ‘−’ for addition and
                                                                                                   subtraction was seen
                                                                            and 1
                                                       and 1
                               and 1
                                                            →
                                                                                 →
                                    →
                     5                    6                    7               8          in Europe in the 17th
                                                                                                   century. Until then,
                  So we say there are 8 pineapples altogether and we can                           it was common to use
                  write it as                                                                      the letter P for plus
                                                                                                   and the letter M for
                                           5    +     3    =     8                                 minus.

                  40                                                                                     Mathematics-1

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