19×9分之4
=(18+1)×9分之4
=18×9分之4+1×9分之4
=8+9分之4
=8又9分之4
猜你喜欢
- 1Please have some tea.(改为现在进行时)
- 2已知在20℃时,长1米,粗细均为1毫米2的铜导线、铝导线、铁导线的电阻分别为:0.0175欧、0.029欧、0.10欧.粗细相同、电阻相等的铜导线、铝导线、铁导线,它们长度关系是 ()
- 31小时内求以下词语解释和造句
- 4三角形ABC分别对应三边abc已知a=bcosC+csinB,求角B?
- 5There is something wrong with your bike,_______?Yes,I'll have it __________tomorrow.
- 6表示绿的时间的四字词语?
- 7核酸DNA、RNA碱基排列顺序是怎样的?
- 8They have to go out to have lunch.(改为一般疑问句)
- 954 .9乘以0.38怎么用简便方法计算
- 10如图,已知三角形ABC中,角BAC=2角B,AB=2AC,AE平分角BAC