21*30*18/7/15/9
=(21x18/7)x(30÷15/9)
=54x18
=972
如果本题有什么不明白可以追问,简便一点
猜你喜欢
- 1outside the backyard of my house is some rose bushes.
- 2我可以问你几个关于假期计划方面的问题吗?汉译英
- 3什么是对偶句
- 4She was killed ____ a traffic accident
- 5sky funny lady fly party中字母“y”的发音哪几个一样
- 6已知函数f(x)=ax的三次方+bx的平方+cx+a的平方 (a,b,c属于R)的单调递减区间(1,2),且满足f(0)=1..
- 7将一个乒乓球和玻璃球埋入装满大米的烧杯里,经过晃动,乒乓球“跑”出来了,为什么?
- 8孔子主张那些思想?
- 9与非门电路逻辑运算规则是______ _______
- 10The child was playing____(danger) near the edge of the swimming pool