4.2×25简便记算
答案:5 悬赏:30 手机版
解决时间 2021-03-09 10:40
- 提问者网友:
- 2021-03-09 07:20
4.2×25简便记算
最佳答案
- 五星知识达人网友:玩家
- 2021-03-09 08:37
4.2×25
=(4+0.2)×25
=4 ×25+0.2 ×25
=100+5
=105
或:
4.2×25
=(5-0.8)×25
=5 ×25-0.8× 25
=125-20
=105追答谢谢。
=(4+0.2)×25
=4 ×25+0.2 ×25
=100+5
=105
或:
4.2×25
=(5-0.8)×25
=5 ×25-0.8× 25
=125-20
=105追答谢谢。
全部回答
- 1楼网友:神的生死簿
- 2021-03-09 12:16
=4×25+0.2×25
=100+5
=105
=100+5
=105
- 2楼网友:有你哪都是故乡
- 2021-03-09 11:17
4.2×25
=2.1×2×25
=2.1×50
=21×5
=105
=2.1×2×25
=2.1×50
=21×5
=105
- 3楼网友:雪起风沙痕
- 2021-03-09 10:55
图
- 4楼网友:独钓一江月
- 2021-03-09 09:43
(4+0.2)×25
=4×25+0.2×25
=100+5
=105
=4×25+0.2×25
=100+5
=105
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