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    E:\Working\Focus_Learning\Math_Genius_3_(11-09-2024)\Open_Files\CHAP_02
                 \ 12-Sep-2024               Surender Prajapati   Proof-4                     Reader’s Sign _______________________ Date __________

                           practice time 2h

                  Solve the following word problems

                  1.  A school library has 1234 storybooks in Hindi, 2356 storybooks in English and 2220
                       books of art and craft. How many books are there in the school library?

                  2.  A company manufactured 4617 bicycles in a year. If 2500 more bicycles were

                       manufactured in the next year, how many total bicycles were manufactured in both
                       years?

                  3.  In a village, there are 4265 men, 4075 women and 1570 children. What is the total
                       number of people living in the village?

                  4.  Radha contributes ₹125 and Rishi contributes ₹170 to buy a gift for their mother.
                       What is the cost of the gift?

                  5.  A balloon seller has 248 red balloons and 173 green balloons. Estimate the total

                       number of balloons by rounding to the nearest 10. Is the total number of balloons
                       more than 400 or less than 400?

                  6.  Jenny's school is planting flowers in school on World Earth Day. They will plant 114
                       daffodils, 11 tulips, and 1119 marigolds. How many flowers will they plant in all?

                          Encapsulate
                       math
                                                                AdditiON

                           exploring Addition              Addition of 3-digit Numbers        Addition of 4-digit Numbers

                   By expanding both the numbers.       With regrouping                   Without regrouping
                   example: 145 = 100 + 40 + 5  = 657   example:                          example:
                            +512 = 500 + 10 + 2         623 + 358 = 981                           2326 + 1253 = 3579
                                                                                          With regrouping
                           Addition Properties                                            example:

                   Property of 0                              estimating the Sum                  3456 + 6345 = 9801
                   example: 1235 + 0 = 1235             It is a rough calculation to find the
                   Property of 1                        sum of the given numbers.
                   example: 2315 + 1 = 2316             example:  Actual      estimated
                   Adding 10 to a number                           Sum       Sum                  Order of Addition
                   example: 3235 + 10 = 3245                     H t O       H t O        Changing the order of the addends
                     Adding 100 to a number                                               does not change the final sum.
                   example: 4230 + 100 = 4330                    1 4 9       1 5 0        243 + 125 = 125 + 243
                     Adding 1000 to a number                   +    3 5    +    4 0
                   example: 5235 + 1000 = 6235                   1 8 4       1 9 0

                  46                                                                                    Mathematics-3

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