0.7777×0.7+0.1111×5.1=? 用简便计算!
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/16 03:44:41
0.7777×0.7+0.1111×5.1=? 用简便计算!
![0.7777×0.7+0.1111×5.1=? 用简便计算!](/uploads/image/z/6704117-53-7.jpg?t=0.7777%C3%970.7%2B0.1111%C3%975.1%3D%3F+%E7%94%A8%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%21)
0.7777×0.7+0.1111×5.1
=0.1111×7×0.7+0.1111×5.1
=0.1111×4.9+0.1111×5.1
=0.1111×(4.9+5.1)
=0.1111×10
=1.111
再问: 你真棒!
再答: 呵呵,过奖!
=0.1111×7×0.7+0.1111×5.1
=0.1111×4.9+0.1111×5.1
=0.1111×(4.9+5.1)
=0.1111×10
=1.111
再问: 你真棒!
再答: 呵呵,过奖!