Question

把偶数2,4,6,8······照下表的样子排成5列，自左往右分别称作第一列、第二列

把偶数2,4,6,8······照下表的样子排成5列，自左往右分别称作第一列、第二列······第五列。第100个偶数【也是200】会出现在哪一列中？ 列出算式

Answer 1

2468101214161820222426283032343638404246485052545860626468707274767880828486889092949698100...............200......................300..............400...........500.....600..........700...............800...........900..................1000................1100.....1200.............1300.......1400....................1500...................1600......1700...........1800...........1900......2000.............2100.....2200.........2300.............2400..............2500...........2600..............2700......................2800..............2900....................3000....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

Answer 2

2 4 6 8 10
12 14 16 18 20
22 24 26 28 30
…………
192 194 196 198 200
故是，第5列