数学题:前三轮的平均的平均分是94

  • 时间:2020-06-07 17:57:17
  • 分类:数学世界
  • 阅读:84 次

数学题:小军参加英语竞赛,前三轮的平均的平均分是94,前四轮的平均分是95分,小军第四轮的得分是多少?(求解题列式)

数学题解答:用前四轮的总分,减去前三轮的总分,就是第四轮的得分。

知道平均数,来求总数的关系式:总数=平均数×份数

95 × 4 – 94 × 3 =?

这样就可以算出第四轮的得分了,具体得数自己算一下吧!

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