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1.   50000-Fifty thousand  2.    41000-forty one thousand   3.    47300- forty-seven thousand and three hundred   4.     57630- fifty-seven thousand six hundred  5.     29485- twenty-nine thousand and four hundred eighty-five 6.     29085- twenty-Nine Thousand and Eighty-Five
(a) 5000, 7500, 85400, 7861 85400 > 7861 > 5000 > 75000 (b) 1971, 45321, 88715 88715  > 45321 > 1971
(a) 847, 8320, 8320, 571 571 < 847 < 8320 < 8320 (b) 9801, 25751, 25751, 38802 9801 < 25751 < 25751 < 38802  
Greatest number - 3322 Smallest number - 2233 Different numbers are  2222, 2232, 2233, 2322, 2333, 2332, 2323, 2223, 3222, 3223, 3232, 3233, 3322, 3333, 3332, 3323 There are 16 in total   
(a) 3, 8, 7 8873 is the greatest while 3387 is the smallest (b) 9, 0, 5 9950 is the greatest while 5009 is the smallest (c) 0, 4, 9 9940 is the greatest while 4009 is the smallest (d) 8, 5, 1 8851 is the greatest while 1158 is the smallest
(a) 2, 8, 7, 4  8742 is the greatest while 2478 is the smallest (b) 9, 7, 4, 1  9741 is the greatest 1479 while is the smallest (c) 4, 7, 5, 0  4750 is the greatest while 4057 is the smallest (d) 1, 7, 6, 2 7621  is the greatest while 1267 is the smallest (e) 5, 4, 0, 3 5430 is the greatest while 3045 is the smallest
(a) 4536, 4892, 4370, 4452 4892 is the greatest while 4370 is the smallest (b) 15623, 15073, 15189, 15800 15800 is the greatest while 15073 is the smallest (c) 25286, 25245, 25270, 25210  25286 is the greatest while 25245 is the smallest (d) 6895, 23787, 24569, 24659 24659 is the greatest while 6895 is the smallest
By Observing the number of digits and digit in the leftmost place can straight away tell us about the greatest and smallest number (2)  1473, 89423, 100, 5000, 310 89423 is the greatest while 100 is the smallest (3) 1834, 75284, 111, 2333, 450 75284 is the greatest 111 while is the smallest (4)  2853, 7691, 9999, 12002, 124 12002 is the greatest while 124 is the smallest  
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