72X36十65X72一72简便运算
72十34X72十72X65怎样用简便方法计算 -
72(1十34十65)=720
49x72 +72x36 +72x15 =（49+36+15）x72 =100x72 =7200
72(1十34十65)=720
49x72 +72x36 +72x15 =（49+36+15）x72 =100x72 =7200
63X36+67X72 =63X36+67ⅹ36+70X36-3X36 =(63+67+70)X36-108 =7200-108 =7092
答：简便运算如下：第一种方法：21x72＋58x36 ＝21x2x36＋58x36 ＝42x36＋58x36 ＝36x（42＋58）＝36x100 ＝3600 第二种方法：21x72＋58x36 ＝21x72＋29x2x36 ＝21x72＋29x72 ＝72x（21＋29）＝72x50 ＝3600
谁能帮我运行一下这个程序,lingo的,显示错误108 -
可以运行，程序没有问题，不能运行，可能是你lingo版本的问题。
72一[960÷(1300÷65十35)］= 72一[960÷(1300÷13÷5十35)］= 72一[960÷(100÷5十35)］= 72一[960÷(20十35)］= 72一960÷55 = 72-192/11 = 792/11-192/11 = 600/11
48×36 24×28 333×21 999×93(简便方法) -
48×36 24×28 333×21 999×93(简便方法)48×36 =(50-2)×（40-4）2000-200-80+8 =2000-280+8 =2000-300+20+8 =1728 24×28 =（20+4）×（30-2）600-40+120-8 =600-100+120+60-8 =500+180-8 =680-8 =672 333×21 =（300+33）×（20+1）6000+300+660+33 =到此结束了？。
1. 125x88+404x25 =125x8x11+101x4x25 =11000+10100 =21100 2. 320x44+68x440 =44x(320+680)=44x1000 =44000 3.79x79-79+22x79 =79x(79-1＋22）79x100=7900 4.25x57+25x42+25 =25x（57＋42＋1)=25x100=2500
简算题7×28+14×36 -
法一：7×28+14×36 =7x2x14+14x36 =14x14+14x36 =14x（14+36）14x50 =700 法二：7×28+14×36 =7x28十7x2x36 =7x28+7x72 =7x（28十72）7x100 =700 希望帮到你望采纳谢谢 加油，
你好，可以这样简便计算。19x36+36x19 =19x36+19x36 =19x36x2 =[(19+1)-1]x(36x2)=(20-1)x72 =20x72-1x72 =1440-72 =1368