5/12÷31/30 +30/31 ×19/12 －30÷31怎么简便运算?

5/12÷31/30 +30/31 ×19/12 －30÷31怎么简便运算? 30,31 30,31, 30,31, 11+30+31 +30 +31+31+30+31 +30 +31+31 +28 +31+30 +31+30 +31 +13 等于多少? 31+29+31+30+31+30= 29*31*(30^2+1) EXCEL返回满足同一行2条件的值日期 班次 时间 价格 2010-10-31 1 10:30:00 12010-10-31 2 11:00:00 22010-10-31 3 11:30:00 52010-10-31 4 12:00:00 82010-10-31 5 12:30:00 112010-10-31 6 13:00:00 142010-10-31 7 13:30:00 172010-10-31 8 14:00: 12+28+31+30+31+30+31+23的简便方法 main(){int a[]={0,31,28,31,30,31,30,31,31,30,31,30,31};/*平年的每月最后一天*/int b[]={0,31,29,31,30,31,30,31,31,30,31,30,31};/*闰年的每月最后一天*/int year,month,date;int year1,month1,date1;int year2,month2,date2;int d,m,day,i=1;lon 19/30÷1/31－19/30简便算法怎样算 ((-14/5)^4*(-10/7)^3*(-5/12)^2*(-3/20)^1)/|5/6-13/12+19/20-31/30| 30+31+30+31+18简便计算 数字推理题 0,1/3,1/3,7/12,5/7,?a.31/33 b.31/35 c.29/30 d.29/343 21+30+31+31+30+31+30+31+31+10等于多少 错在哪里?#include #include using namespace std;void ResetTheTime(int *year,int *month,int *date,int *hour,int *minute,int *second){int dayOfMonth[12]={31,28,31,30,31,30,31,31,30,31,30,31};if( *year < 0 || *month < 1 ||*month > 12 ||*date < 1 || * 12÷7×3/14 怎么简算?1/6 + 13/12 + 21/20 + 31/30 + 1/42 + 57/56怎么简算？ 25,27,30,31,