作业帮67×1/4+2又1/2×3.75-4又1/2×25%简便运算,要有算式.
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/03 23:15:16
67×1/4+2又1/2×3.75-4又1/2×25%简便运算,要有算式.
67×1/4+2又1/2×3.75-4又1/2×25%简便运算,要有算式.
67×1/4+2又1/2×3.75-4又1/2×25%简便运算,要有算式.
67×1/4+2又1/2×3.75-4又1/2×25%
=67/4+5/2×15/4-9/2×1/4
=(134+75-9)/8
=200/8
=15