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六年级数学 10道简便计算题带答案谢谢哦
1、2.641.7-2.640.7 =2.64(1.7-0.7) =2.641 =2.642、31.51.07-3.150.7 =3.1510.7-3.150....
发布时间:2024-11-29 所属栏目:百科知识 浏览量:555
1、2.641.7-2.640.7 =2.64(1.7-0.7) =2.641 =2.642、31.51.07-3.150.7 =3.1510.7-3.150....
发布时间:2024-11-29 所属栏目:百科知识 浏览量:555