74-0.4×0.7-0.72怎样简便计算?

来源:学生作业学帮网 编辑:学帮网 时间:2024/06/03 03:38:24

74-0.4×0.7-0.72怎样简便计算?

74-0.4×0.7-0.72
=74-0.28-0.72
=74-(0.28+0.72)
=74-1
=73

74-0.4×0.7-0.72
=74-0.28-0.72
=74-(0.28+0.72)
=74-1
=73

74-0.4*0.7-0.72
=74-0.28-0.72
=74-(0.28+0.72)
=74-1
=73