您好：
57×99+44×99-99
=99x(57+44-1)
=99x100
=9900
如果本题有什么不明白可以追问,如果满意记得采纳
如果有其他问题请另发或点击向我求助,答题不易,请谅解,谢谢.
祝学习进步!
猜你喜欢
- 1设关于x的不等式(2a-b)x+3a-4b0
- 2they have been expecting a splendid crop.that's what they have been___
- 3you must listen to carefully
- 4秦朝中央集权制度产生了哪些积极影响
- 5Where ____ she ____(live)?
- 6I ,winter,because,like,l,can,skating,go,best连词成句
- 7挑选出来的易错题目,请您给予具体解析,
- 8如果有理数a,b满足a+b＜0,化简|1-(a+b)|-|-(a+b)|.
- 9设w=f(x+y+z,xyz),f具有二阶连续偏导数,求(∂²w)/(∂x∂z)
- 10We have a special party (on October 31st)对括号内的提问