(-5)×(+7又1/3)+7×(-7又1/3)-(+12)×5(-7又1/5)简便方法计算= =求!
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/02 17:47:49
![(-5)×(+7又1/3)+7×(-7又1/3)-(+12)×5(-7又1/5)简便方法计算= =求!](/uploads/image/z/15242400-0-0.jpg?t=%28-5%29%C3%97%28%2B7%E5%8F%881%2F3%29%2B7%C3%97%28-7%E5%8F%881%2F3%29-%28%2B12%29%C3%975%28-7%E5%8F%881%2F5%29%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%AE%A1%E7%AE%97%3D+%3D%E6%B1%82%21)
(-5)×(+7又1/3)+7×(-7又1/3)-(+12)×5(-7又1/5)简便方法计算= =求!
(-5)×(+7又1/3)+7×(-7又1/3)-(+12)×5(-7又1/5)
简便方法计算= =求!
(-5)×(+7又1/3)+7×(-7又1/3)-(+12)×5(-7又1/5)简便方法计算= =求!
原式=(-7又1/3)×(5+7-60)
=(-22/3)×(-48)
=352