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练习十七,（选自教材,P69-71,）,三十五万七千八百六十一,一千零三万六千八百九十,六百万四千零三十,四千三百零二万零九,八亿,五百零六万七千,2.,按要求在表中填数。,13.39724852,亿,13,亿,6.65575306,亿,7,亿,6.74149546,亿,7,亿,3.,写出下面的数，并把它们按从大到小的顺序排列。,752443,1808500,891093,240480,1808500,891093,752443,240480,38,37,79,78,5,4,13,12,（,1,）,58.8,-89.2,（,2,）,4500m -400m,（,3,）,1200,元,-600,元,（,4,）,8,楼,-2,楼,3,个百,3,个一,3,个,0.1,3,个,0.01,0.6,1.2,25%,60%,1.75,7.0,0.70,0.070,3,4,3,4,4,3,75,1,5,9,13,15,19,2,4,14,20,2,5,13,19,4,9,14,15,20,9,15,=,96,75,27,72,4.75,0.78,1.02,12.06,12.5,366,70,1,9.,按要求在圈里填数。,12,的因数,12,和,18,的,公因数,18,的因数,4,12,1,2,3,6,9,18,6,的倍数,（,50,以内）,6,和,8,的,公倍数,8,的倍数,（,50,以内）,6,12,18,30,36,42,8,16,32,40,24,48,10.,分别求下面各组数的最大公因数和最小公倍数。,9,和,18 4,和,10 4,和,9,9,和,18,的最大公因数是,9,，最小公倍数是,18,。,4,和,10,的最大公因数是,2,，最小公倍数是,20,。,4,和,9,的最大公因数是,1,，最小公倍数是,36,。,9,时,40,分,9,时,39,分,1,时,53,分,12.,按规律填数。,513,1025,思考题：两路公交车一天同时发车多少次？,两路公交车同时发一次车需要经过的时间是,5,和,8,的最小公倍数,40,。,从,6:00,发车到,22:00,收车一共运行了,1660=960,（分）,同时发车次数为：,96040+1=25,（次）,
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