3.56*99-3.5*9.9的简便运算
来源:学生作业学帮网 编辑:学帮网 时间:2024/04/29 16:15:17
3.56*99-3.5*9.9的简便运算
3.56*99-3.5*9.9
=35.6*9.9-3.5*9.9
=(35.6-3.5)*9.9
=32.1*9.9
=32.1*(10-0.1)
=321-3.21
=317.79
3.56*99-3.5*9.9
=35.6*9.9-3.5*9.9
=(35.6-3.5)*9.9
=32.1*9.9
=32.1*(10-0.1)
=321-3.21
=317.79