3.29减(1.7加 1.27)的简便方法
答案:4 悬赏:20 手机版
解决时间 2021-03-28 18:19
- 提问者网友:最美的风景
- 2021-03-27 18:49
3.29减(1.7加 1.27)的简便方法
最佳答案
- 五星知识达人网友:末日狂欢
- 2021-03-27 19:44
3.29-(1.7+1.27)
=(3.27+0.02)-(1.27-1.7)
=(3.27-1.27-1.7)+0.02
=(2-1.7)+0.02
=0.3+0.02
=0.32
=(3.27+0.02)-(1.27-1.7)
=(3.27-1.27-1.7)+0.02
=(2-1.7)+0.02
=0.3+0.02
=0.32
全部回答
- 1楼网友:神的生死簿
- 2021-03-27 23:04
3.29-1.27-1.7
- 2楼网友:青灯有味
- 2021-03-27 21:39
3.29-(1.7+1.27)
=3.29-2.97
=3.29-(3-0.03)
=3.29-3+0.03
=0.29+0.03
=0.32
=3.29-2.97
=3.29-(3-0.03)
=3.29-3+0.03
=0.29+0.03
=0.32
- 3楼网友:雾月
- 2021-03-27 20:26
3.29-(1.7+1.27)
=3.29-1.7-1.27
=3.29-1.27-1.7
=2.02-1-0.7
=1.02-1+0.3
=0.02+0.3
=0.32
=3.29-1.7-1.27
=3.29-1.27-1.7
=2.02-1-0.7
=1.02-1+0.3
=0.02+0.3
=0.32
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