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Page 40 - Touchpad Mathematics_Ver1.0_C4
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    1.   Help the courier boy to find the flat number mentioned in the address of the
                      parcels and mark the flat in the respective building.

                   Example: Flat 279 is in the 200 Building. Each building block has 100 square boxes

                   as shown. So, to locate Flat 279, you have to mark the 79th square box in the 200
                   Building.

                        Zero Building            100 Building             200 Building            300 Building
                            (0-99)                 (100-199)               (200-299)                (300-399)

                    90 91 92 93 94 95 96 97 98 99
                    80 81 82 83 84 85 86 87 88 98
                    70 71 72 73 74 75 76 77 78 79                                         279
                    60 61 62 63 64 65 66 67 68 69
                    50 51 52 53 54 55 56 57 58 59
                    40 41 42 43 44 45 46 47 48 49
                    30 31 32 33 34 35 36 37 38 39
                    20 21 21 23 24 25 26 27 28 29
                    10 11 12 13 14 15 16 17 18 19
                     0  1  2  3  4  5  6  7  8  9
                        400 Building             500 Building             600 Building             700 Building
                          (400-499)               (500-599)                (600-699)                (700-799)

                              800 Building (800-899)                            900 Building (900-999)

                   2.  Now locate the square boxes and building blocks for the following:

                     a.  69 + 100             b.  200 + 160         c.  389 + 100          d.  700 + 83

                       38        Mathematics 3

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