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E:\Working\Focus_Learning\Math_Genius_2_(09-10-2023)\Open_Files\Chap_02
               \ 26-Feb-2024  Bharat Arora   Proof-6                                    Reader’s Sign _______________________ Date __________





              ADDITION FACTS


              We know that addition means putting together.
              Madhu had 6 plants in her balcony. She brought 3 more plants. Can you say how

              many plants are there now?                                                6

              Here, we need to add the numbers 6 and 3.                            +    3
              She has 9 plants now.                                                     9

              The sign of addition is ‘+’ (plus). The numbers to be added are called addends and

              the answer is called the sum.

              So,                     6    +    3    =    9           This is an addition fact.


                                       Addends         Sum
              Properties of Addition


              Adding 0 to a Number

              When we add 0 to a number, we get the same
              number as the answer.                                                Think and Answer

              (a)  5 + 0 = 5                      (b)     82 + 0 = 82            Each object has a hidden number
                                                                                 under it. Find out the numbers
                        same                                   same              using given addition facts and
              Adding 1 to a Number                                               complete the last one.

              When we add 1 to a given number, the sum is                                 +       = 12

              the number that comes just ‘after’ the given                                +        = 16
              number.

              (a)  8 + 1 = 9                      (b)     22 + 1 = 23                     +        = _____
                        after                                  after

              Order in Addition

              When we add two numbers in any order, we get the same sum each time.

              (a)  4 + 5 = 9  or           5 + 4 = 9                (b)  18 + 8 = 26         or      8 + 18 = 26
                                        same                                                      same

              ADDITION ON The Number lINe


              Ritika and Mansi decorate their house with garlands. Mansi hangs 19 garlands while
              Ritika hangs 16 garlands.

              Mansi: How many garlands did we use in all?




              Mathematics-2                                                                                          35
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