您好:
2.61×39.5+0.7×261+9.05×26.1
=2.61x39.5+2.61x70+2.61x90.5
=2.61x(39.5+90.5+70)
=2.61x200
=522
不明白,可以追问如有帮助,记得采纳
如追加其它问题,采纳本题后点击想我求助,谢谢
祝学习进步!
您好:
2.61×39.5+0.7×261+9.05×26.1
=2.61x39.5+2.61x70+2.61x90.5
=2.61x(39.5+90.5+70)
=2.61x200
=522
不明白,可以追问如有帮助,记得采纳
如追加其它问题,采纳本题后点击想我求助,谢谢
祝学习进步!