下面各题怎样简便就怎样算.472+66+134 324+75+46+25+54 283+36+64+17 15+57+185 125+75+26+74
答案:2 悬赏:80 手机版
解决时间 2021-02-14 09:53
- 提问者网友:蓝莓格格巫
- 2021-02-13 21:49
下面各题怎样简便就怎样算.472+66+134 324+75+46+25+54 283+36+64+17 15+57+185 125+75+26+74
最佳答案
- 五星知识达人网友:归鹤鸣
- 2021-02-13 23:20
283×125+283×74+283怎么用简便方法计算
全部回答
- 1楼网友:人间朝暮
- 2021-02-14 00:19
(1)472+66+134,
=472+(66+134),
=472+200,
=672;
(2)324+75+46+25+54,
=324+(75+25)+(54+46),
=324+100+100,
=524;
(3)283+36+64+17,
=(283+17)+(36+64),
=300+100,
=400;
(4)15+57+185,
=(15+185)+57,
=200+57,
=257;
(5)125+75+26+74,
=(125+75)+(26+74),
=200+100,
=300;
(6)98+(24+102),
=98+24+102,
=(98+102)+24,
=200+24,
=224.
=472+(66+134),
=472+200,
=672;
(2)324+75+46+25+54,
=324+(75+25)+(54+46),
=324+100+100,
=524;
(3)283+36+64+17,
=(283+17)+(36+64),
=300+100,
=400;
(4)15+57+185,
=(15+185)+57,
=200+57,
=257;
(5)125+75+26+74,
=(125+75)+(26+74),
=200+100,
=300;
(6)98+(24+102),
=98+24+102,
=(98+102)+24,
=200+24,
=224.
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