简便运算:102.36×49 2.25×1.8+1.25×0.18
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 15:55:51
![简便运算:102.36×49 2.25×1.8+1.25×0.18](/uploads/image/z/372380-68-0.jpg?t=%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97%EF%BC%9A102.36%C3%9749+2.25%C3%971.8%2B1.25%C3%970.18)
简便运算:102.36×49 2.25×1.8+1.25×0.18
简便运算:102.36×49 2.25×1.8+1.25×0.18
简便运算:102.36×49 2.25×1.8+1.25×0.18
102.36×49
=102.36×(50-1)
=5118-102.36
=5015.64
2.25×1.8+1.25×0.18
=0.18×(2.25x10+1.25)
=0.18×(22.5+1.25)
=0.18×23.75
=0.18×(25-1.25)
4.5-0.225
=4.275
102.36×49
=102.36×(50-1)
=5118-102.36
=5015.64
2.25×1.8+1.25×0.18
=0.18(2.25x10+1.25)
=0.18(22.5+1.25)
=0.18×23.75
=4.275
2.25×1.8+1.25×0.18 的简便运算