22×28+66×24
=22×28+22×3×24
=22×28+22×72
=22×(28+72)
=22×100
=2200
请点击下面的【选为满意回答】按钮.
猜你喜欢
- 1求函数y=1+sin(-1/2x+π/4)的单调减区间
- 2儿子和列车的答案
- 38.It was essential that the application forms ____ back before the deadline(截止日期).
- 4the child has some storybooks in her bag.同义句
- 5I have to study for my math test(改为一般疑问句) ____you_____to study for your math test?
- 6某是南北长约60千米,在比例尺是1；250000的地图上,南北长度约是多少厘米?如果在这幅图上量的东西长18厘
- 7直角三角形两直角比为16:9,斜边为2.6米,求直角两边长度
- 8简爱英文读后感500字
- 9函数f(x)=1/sin2(平方)x+9/cos2(平方)x(0
- 10打靶时，靶子到打靶人之间的距离是340m，从子弹离开枪口后经过1.5s打靶人听到子弹击中靶的声音，若空气阻力不计，求子弹离开枪口时的速度．