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    E:\Working\Orange_Education\Math_Genius_2\Open_Files\Chap_02
                   \ 26-Sep-2025  Bharat Arora   Proof-10                                   Reader’s Sign _______________________ Date __________

                  ADDITION FACTS

                  We know that addition means putting together.
                  Madhu had 6 plants on her balcony. She brought 3 more plants. How many plants

                  are there now?                                                            6

                  Here, we need to add the numbers 6 and 3.                            +    3
                  There are 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 Tank                   Critical Thinking

                  (a)  5 + 0 = 5                      (b)     82 + 0 = 82            Each object has a hidden
                                                                                     number under it. Find out
                            same                                   same              the numbers using the given
                  Adding 1 to a Number                                               addition facts and complete the
                                                                                     last one.
                  When we add 1 to a given number, the sum is                                 +       = 12

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

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

                  Order in Addition

                  When we add two numbers in different orders, 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 decorated their house with garlands. Mansi hung 19 garlands while
                  Ritika hung 16 garlands.

                  Mansi: How many garlands did we use in all?

                  Mathematics-2                                                                                          35

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