来源:学生作业帮 编辑:百度作业网作业帮 分类:数学作业 时间:2024/08/19 00:49:13
12.68-22.78÷3.4的简便怎样算
12.68-22.78÷3.4=12.68-6.7=5.98
再问: 哦。谢谢,但是要是简便方法啊?
再答: 12.68-22.78÷3.4 =10+2.68-22.78÷3.4 =34÷3.4+2.68-22.78÷3.4 =34÷3.4-22.78÷3.4+2.68 =11.22÷3.4+2.68 =(10.2+1.02)÷3.4+2.68 =3+0.3+2.68 =5.98