简便运算:8.42×9.6+842×0.4

来源:学生作业学帮网 编辑:学帮网 时间:2024/06/01 18:13:09

简便运算:8.42×9.6+842×0.4


如果是这样答案为:
8.42x9.6+8.42x0.4
=8.42x(9.6+0.4)
=8.42x10
=84.2
确定题目正确.

8.42*9.6+8.42*0.4
=8.42*(9.6+0.4)
=8.42*10
=84.2