12.7×99+1.27的简便方法
答案:5 悬赏:10
解决时间 2021-03-20 19:37
- 提问者网友:末路
- 2021-03-20 15:56
12.7×99+1.27的简便方法
最佳答案
- 二级知识专家网友:何以畏孤独
- 2021-03-20 16:40
12.7×99+1.27
=12.7×99+12.7×0.1
=12.7×(100-1)+1.27
=1270-12.7+1.27
=1257.3+1.27
=1258.57
=12.7×99+12.7×0.1
=12.7×(100-1)+1.27
=1270-12.7+1.27
=1257.3+1.27
=1258.57
全部回答
- 1楼网友:污到你湿
- 2021-03-20 20:58
12.7(99+0.1)
- 2楼网友:春色三分
- 2021-03-20 19:36
原式=12.7×(99+1)=1270
- 3楼网友:雾月
- 2021-03-20 17:57
=12.7*(100-1)+1.27
=12.7*100-12.7+1.27
=1270-12.7+1.27
=1258.57
=12.7*100-12.7+1.27
=1270-12.7+1.27
=1258.57
- 4楼网友:洎扰庸人
- 2021-03-20 17:35
=12.7(100-1)+1.27
=1270-12.7+1.27
=1271.27-12.7
=1258.57
=1270-12.7+1.27
=1271.27-12.7
=1258.57
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