2.45*7.2-0.245*28-24.5*0.4怎么简便运算
答案:2 悬赏:70 手机版
解决时间 2021-04-02 21:41
- 提问者网友：半生酒醒
- 2021-04-01 22:11
2.45*7.2-0.245*28-24.5*0.4怎么简便运算
最佳答案
- 五星知识达人网友：末日狂欢
- 2021-04-01 23:38
2.45*7.2-0.245*28-24.5*0.4怎么简便运算
2.45*7.2-0.245*28-24.5*0.4
=2.45*7.2-2.45*2.8-2.45*4
=2.45*（7.2-2.8-4）
=2.45*5
=12.25
2.45*7.2-0.245*28-24.5*0.4
=2.45*7.2-2.45*2.8-2.45*4
=2.45*（7.2-2.8-4）
=2.45*5
=12.25
全部回答
- 1楼网友：野味小生
- 2021-04-02 00:18
2.45×7.2-0.245×28-24.5×0.4
=2.45×7.2+2.45×2.8+2.45×4
=2.45×（7.2-2.8-4）
=2.45×0.4
=0.98
=2.45×7.2+2.45×2.8+2.45×4
=2.45×（7.2-2.8-4）
=2.45×0.4
=0.98
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