Basic HTML Version

|  | Table of Contents |  | View Full Version

Page 24 - Touchpad Mathematics_Ver1.0_C4
P. 24

    Example 2. Find the greatest number among 2568, 2467, 1938.                             Th H     T O

                Solution.                                                                               2    5   6    8

                Step 1.  Write the numbers in a place value chart.                                      2    4   6    7
                Step 2.  Compare the thousands digits, 1938 is the smallest number.                      1   9   3    8

                                      2568           2467           1938

                Step 3.  Compare the hundreds digits, 2568 > 2467

                                      2568           2467

                Step 4.  2568 is the greatest number.
                Example 3. Find the smallest number among 2680, 1469, 1438.                             Th H     T O

                Solution.                                                                               2    6   8    0

                Step 1.  Write the numbers in the place value chart.                                     1   4   6    9

                Step 2.  Compare the numbers and remove the greatest number.                             1   4   3    8

                           Here, 2680 is the greatest number.

                                      2680           1469           1438

                Step 3.  Compare the remaining numbers and remove the greatest number.
                           Here, 1469 > 1438.                                                   Th H      T O

                                       1469          1438                                        1   4    6   9

                Step 4.  So, 1438 is the smallest number.                                        1   4    3   8

                                                                                                Same           30 < 60
                            Exercise 1C

                    1.  Compare the following using > , < or = .

                        a.   314              98          b.  629               3150           c.  2378            729

                        d.   1400             2500        e.  7914              7500           f.  5838            5583

                        g.   8650             8650        h.  4351              4360           i.  962             1965

                    2.  Circle the greatest number and tick the smallest number.

                        a.   8209,  7989,  9387,  2087                    b.   9843,  8792,  5478,  8333

                        c.   7449,  4349,  4549,  7949                    d.   7089,  7764,  7890,  7809

                       22        Mathematics 3

| 19 20 21 22 23 24 25 26 27 28 29 |