Basic HTML Version

|  | Table of Contents |  | View Full Version

Page 203 - Touchpad Mathematics_Ver1.0_C4
P. 203

    ADDITION AND SuBTrACTION OF MONEY

                    We can add or subtract the money as we add or subtract
                    ordinary numbers. Let us understand this with examples.

                    Example 1. Sumit buys 1 kg of sugar for `45 and 1 L of milk
                    for `57. How much will he pay to the shopkeeper?

                    Solution. Cost of 1 kg sugar =          `45                                                   General store

                                Cost of 1 L milk       =  +  `57

                                Total cost             =  `102

                    Thus, Sumit will pay `102 to the shopkeeper.

                    Example 2.  Rahul buys a pack of tea for  `140 and gives a  `200 note to the

                    shopkeeper. How much money will the shopkeeper return to him?

                    Solution. Amount given to the shopkeeper =  `200

                                Cost of a pack of tea                    = –  `140

                                Money returned                           =     `60

                    Thus, the shopkeeper will return `60 to Rahul.

                    Example 3. Ram bought a toy for `210 and a pair of shoes for `579. How much did

                    he spend in total?

                    Solution. Cost of the toy          =    `210

                                Cost of the shoes  = +  `579

                                Total cost             =   `789                                         `  210
                                                                                                                    `  579
                    Thus, Ram spent `789 in total.

                    Example  4. A mobile phone costs `7650. Sanya has only `6475 in her purse. How

                    much more money does she need to buy the mobile phone?

                    Solution. Cost of the mobile phone =  `7650

                                Money in the purse              = –  `6475

                                Money needed                    =     `1175                                           `  7650

                    Thus, Sanya needs `1175 more to buy the mobile phone.

                                                                                                                 201
                                                                                                       Money

| 198 199 200 201 202 203 204 205 206 207 208 |