这道简算题怎么做 9.9×7.23＋0.723 84.3×10.2。怎么做啊。请告诉我。谢谢，拜托了
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解决时间 2021-02-11 20:14
- 提问者网友：我的未来我做主
- 2021-02-11 16:12
这道简算题怎么做 9.9×7.23＋0.723 84.3×10.2。怎么做啊。请告诉我。谢谢，拜托了
最佳答案
- 五星知识达人网友：洒脱疯子
- 2021-02-11 17:20
=9.9*7.23+0.1*7.23=7.23*（9.9+0.1）=72.3
84.3*10.2=84.3*10+84.3*0.2
84.3*10.2=84.3*10+84.3*0.2
全部回答
- 1楼网友：上分大魔王
- 2021-02-11 19:18
9.9×7.23＋0.723 可得9.9×7.23＋0.1×7.23即（9.9+0.1）×7.23即得72.3
84.3×10.2可得84.3×(10+0.2)即84.3×10+84.3+0.2可得843+16.86即为859.86
84.3×10.2可得84.3×(10+0.2)即84.3×10+84.3+0.2可得843+16.86即为859.86
- 2楼网友：慢性怪人
- 2021-02-11 18:53
9.9*7.23+0.723
=9.9*7.23+0.1*7.23
=(9.9+0.1)*7.23
=10*7.23
=72.3
得数为72.3
84.3*10.2
=84.3*(10+0.2)
=84.3*10+84.3*0.2
=843+16.86
=859.86
得数为859.86
=9.9*7.23+0.1*7.23
=(9.9+0.1)*7.23
=10*7.23
=72.3
得数为72.3
84.3*10.2
=84.3*(10+0.2)
=84.3*10+84.3*0.2
=843+16.86
=859.86
得数为859.86
- 3楼网友：山河有幸埋战骨
- 2021-02-11 17:53
9.9×7.23＋0.723
=99*0.723+0.723
=(99+1)*0.723=723
84.3×10.2
=84.3(10+0.2)
=843+16.86
=859.86
=99*0.723+0.723
=(99+1)*0.723=723
84.3×10.2
=84.3(10+0.2)
=843+16.86
=859.86
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