7.49-(0.56+2.49)简便运算
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/18 03:44:41
7.49-(0.56+2.49)简便运算
7.49-(0.56+2.49)简便运算
7.49-(0.56+2.49)简便运算
7.49-(0.56+2.49
=(7.49-2.49)-0.56
=5-0.56
=4.44
=7.49-0.56-2.49
=7.49-2.49-0.56
=5-0.56
=4.44
7.49-(0.56+2.49)
=7.49- 3.05
= 4.44