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               \ 03-Oct-2025  Bharat Arora   Proof-9                                        Reader’s Sign _______________________ Date __________





              Example 1: Multiply `16.25 by 5.
                                                                                                       3  1     2
              Solution:   Step 1.  Multiply the given amount by the number ignoring                ` 1 6 . 2 5
                                      the point (.).                                            ×                   5

                                       1625 × 5 = 8125                                             ` 8 1 . 2 5
                            Step 2. Put a point in the product after the second digit from the right.

                                       8125        81.25
                            Thus, `16.25 × 5 = `81.25


              Example 2: Shweta bought a pen for `5.75. What is the cost of 6 such pens?
                                                                   4     3
              Solution:   Cost of 1 pen              =     `       5 . 7 5
                          Number of pens             =  ×                   6

                          Total cost of 6 pens       =     ` 3 4 . 5 0                                `  5.75


                            Thus, the cost of 6 such pens is `34.50.

              Example 3: An envelope in the post office costs `5.50. What is the cost of 8 such
              envelopes?

              Solution:                                              4

                             Cost of 1 envelope        =      `      5 . 5 0
                             Number of envelopes =        ×                    8

                             Cost of 8 envelopes       =      ` 4 4 . 0 0

                            Thus, the cost of 8 envelopes is `44.

              division of Money

              Division of money is similar to the division of ordinary numbers.


              Step 1. Divide the given amount by the given number, ignoring the point (.).
              Step 2. Then, put a point after the second digit from the right in the quotient.


              Example 4: Divide `50.30 by 5.

              Solution:   Step 1. Divide 5030 by 5.                       Think Tank                           Critical Thinking
                                      5 5030    1006                     1.  Which Indian currency note
                                         5                                  bears the Swachh Bharat
                                         00                                 Abhiyan logo and has the image of the Red
                                         00                                 Fort?
                                            30                           2.  The highest denomination currency note
                                            30                              of India printed by the RBI in the 21st
                                                                            century was of________.
                                              0



              Mathematics-3                                                                                         203
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